Vortec 454 Vs 350

If we were to compare 2 similar chevelles, one with a 350 sbc and the other with a 454 bbc. 5001 : 74 : 1971-73: 330862 : 400 : 1. Chevy Small Block Engines. The starter for a car looks exactly the same as the one you just removed from your marine engine. Chevy 350 Small Block Engines for Sale Made in USA with Quality Parts. No matter which cube size you pick, go vortec. These aftermarket performance cast iron intakes are designed for the Vortec & Vortec Bow-Tie cylinder heads. if you look at the factory specs a 5. 350 For Torque I read in Superchevy an article that said the best build power-per-dollar they had done was a 350 ,vortec head, Edelbrock Performer Air Gap intake, Comp XE262h cam engine. Our Engine Wiring Harnesses change that. 3 is a great engine, and the rest of the LS family are great engines too. The 350 would last until 2002, primarily as a truck engine; after 47 years in production it would serve out its last days as an option in GM's full-size vans. How does the vortec 5. you bore it. there is a lot more to it than a cooler and a couple of exhuast manifolds. Our new engine sales department will make sure your order is exact and that you get the engine(s) that is right for you. The world's absolute lowest prices since 1985. Not sure what a Vortec 6. 0L engine compared to 3. Custom built engines for muscle cars 800-326-6554. Big Block Chevy Engine Build 454 C. of torque, the 6. The extra wiring, messy distributor set up, and reverse flow cooling system aren't worth the power advantage in my opinion. 3 which achieves it numbers by being able to spin high RPM's. That is not correct, it is in fact an LS1 engine. Power output is 285-295 hp (213-220 kW) and torque is 325 lb·ft (441 N·m) to 335 lb·ft (454 N·m). Personally I would try and afford an LS. 7 L (5,665 cc/345. This is great for stock short block 350 engines like the Chevrolet Performance 290 hp 350 crate engine that uses a dished piston with a 76cc combustion chamber head. GM offers a crate long-block assy that is a perfect match, but GM intended it to strictly be an OEM replacement and has absolutely no performance gain. seems dodge is trying to cash in on its old reputation with the original hemi that was a very strong motor. 4L The Vortec 2400 is a global engine used in a multitude of applications. Think Of This 454 Cant Sit On Fenders And Work Under Hood 350 You Can. 00 in bore and 3. It had slightly reduced power compared to the L29 454 and used a different PCM. Your Engines Max RPM like 6000 or 7000. When the timing light is pointed at the TDC line, the sharpie line will also be seen. 250" stroke and the 350 has a longer 3. Currently looking at used class A motorhomes. I had a 96 Chevy 350 vortec, automatic and pulled a 30' travel trailer. The difference between a 305ci engine and a 350ci engine is the size of the engine displacement in cubic inches. On the other hand, a 454 will spend more time in the lower RPM range than a 350, so that's less wear on the rings, pistons, cylinder walls, etc. I had been experiencing some engine sputtering and stalling when the engine was under load, noticed alot going up hills. com source added. My 1979 K20 had an LS9 350 with 175hp and 275ft-lb of torque. 4 liters of fluid. You can also choose from performance and custom GM 454 engines designed to be compatible with your Chevrolet vehicle. This site uses cookies. are there any mounting hole differences at all or anything? any differences at all? because i came across a 350 vortec short block in super wonderful shape for a super cheap price and need to know if all of my stuff will mount up to it fine. Think Of This 454 Cant Sit On Fenders And Work Under Hood 350 You Can. There are many threads that debate this topic hidden in the archives - I contemplated doing exactly what you are thinking and did some research a few months ago. Can I replace my 4. 7 = 350) Then the 88-95 should work, Just double check your sensors and locations as the plugs may be different and or in different locations. L59 denoted a flexible fuel version, while the LM7 was the standard version of the engine. brand new Cylinder Head for GM 5. I'm looking at options for rebuilding/replacing the long block assy for a '91 350 w/TBI and swirl-port heads (pickup truck donor). 1 will run well on Reg. Power output is 285-295 hp (213-220 kW) and torque is 325 lb·ft (441 N·m) to 335 lb·ft (454 N·m). Displacing 5. My gf dad has some friends at chevy that said they would drop a brand new 305 in it, installed, for $2000. 6 mph -- just. You can plan local FSC meets in the Events Planning sub-forum and then tell us how it went in the Wrap Up sub-forum located inside. I could count on 8-9mpg towing and 11-12mpg empty on the highway. 0 totally different animals , the 5. if you read the cover on any of these newer engine packages such as the ho boss, max rpm on the 351 is 4800 and on the 350 5200. The vortec 7. 7L GM Vortec Engines. Chevy S10 - GMC S15 and Sonoma Engine Swap. The Vortec 454 engine had 7,439 cubic centimeters, or 454 cubic inches, of displacement, giving it the 454 or 7400 name. This is a completely remanufactured 7. as far as fuel milage goes,of course,the 454 will use more fuel that the 383 and 350,but can be made to be managable. 7L 350 cid Vortec V8 1998 and newer Marine Engines Only Fits 8-Bolt Intake applications only. The Vortec 454 can have conventional larger sized fuel injectors installed into it if needed unlike its smallblock brothers which need an intake manifold. The massive amounts of torque a big block produces at lower RPMs will tear up the alpha drive. 350 Takes A Place. 4 cylinder heads are supposed to be pretty decent. I just purchased the Edelbrock Performer RPM 60459 heads, an 800-cfm carb, and an Air-Gap manifold. The 350 vortec (with vortex technology) is rated at 255 hp and 330 ft-lbs of torque. Re: kodiak 350 vs. 0L MPI rated at 260HP. Finally swapped a 7. It is not a challenging job. Then I suddenly realized that this was a trick question since all the aftermarket 454 focused camshafts are designed to fit a large block Chevy 454 engine, and unless you buy a cheap piece of shit from some unknown source, the market is full of “the best” power performance you seek. Tech Tips 305 CID TPI Engine & Camshaft Courtesy of 3rd Gen Member ~ Vader. I could count on 10-11mpg towing and 13-14mpg empty on the highway. Finally! An exhaust gasket that really works! 100% graphite construction means Remflex gaskets can take the heat-up to 3,000º F! A built-in 50% crush allows Remflex gaskets to fill gaps in headers or exhaust manifolds up to 1/16-inch inch. Find CHEVROLET 5. The Vortec 5300, or LM7/L59/LM4/L33, is a V8 truck engine. 4 liter engine. Michael Rasmussen; Massaprqua, NY: I have a 454 big-block from a Chevy truck in my Chevelle. 4L Magnum MPI. I noticed there's two distinctions for the 350 V8. If you have a question or don't see the engine you are looking for, email us or call us at 1-800-275-7371 and we will be happy to answer your questions. Free shipping on orders over $100 + Guaranteed lowest price. RECTANGULAR PORT - Valve size 2. MERCURY PARTS CAN ONLY BE SOLD AND SHIPPED TO ADDRESSES WITHIN THE UNITED STATES. Price is basically the ultimate deciding factor when purchasing parts. We have a large inventory of domestic crankshafts, however most import crankshafts are done on special order, please ask a salesman for further details. lbs @ 3250 RPM. Remanufactured 5. get a 4 barrel vortec carb intake, a 454 670cfm throttle body, and an adapter plate. Will it make more horsepower than their recent Ford budget build? The dyno will reveal the answer. that truck goes 9. I'd reuse a 350 for the same reason one might reuse a 305. 4L V8 is just laughable. I am considering replacing the engines and have a line on 2 standard rotating 454 fuel injected engines to replace the ones I have. I have a '93 7. Using Vortec heads is a great swap but you need to educate yourself before doing anything as they are just not a direct bolt-on. 4L MPI, and the 385 Hp 454 Magnum MPI Sterndrive Model and 380 Hp 7. ~Read me pleeeze~ For up-front payment total on a remanufactured long block exchange engine, add the 3 figures at the right end of the table rows above. DISCONTINUED - LQ9 6. 500" valves. If you are looking to convert your car from a 305 TPI to a 350 TPI setup, then you should find the information below rather useful. 7 Ratio 7/16 Polylocks. On the other hand, a 454 will spend more time in the lower RPM range than a 350, so that's less wear on the rings, pistons, cylinder walls, etc. The massive amounts of torque a big block produces at lower RPMs will tear up the alpha drive. 0L MPI rated at 260HP. 2L (I4) all the way up to 8. 7L Intake Manifold Gaskets Each 12550027 Intake Manifold Bolts 0-80551 Holley 650 CFM “Spread Bore” 0-80492 Holley 600 CFM V6 1932 V6 Carb. The Vortec heads offer a wealth of power potential for their extremely low price. It is a stroked (by 9 mm) version of the Vortec 4800 and replaced the 5700 L31. About Melling. Marine Engines 4 Less has over 25 years of experience in the marine and high performance engine industry. 3 liter found in later models of the 1500 silverado? The 5. GM 350 TBI vs. GM uses most of the same sensors on a throttle body as they do a tuned port engine. I had a 1992 rcsb TBI 350 auto 3. 7L: Which Cummins Is Really Better? When it first arrived on the scene for ’07. 454 vs 350 Chevelle Car Forums. Personally, i think the only things you gain from an LS swap is the ability for immediate startup in all climate conditions, and the LS motor are more apt to take updgrades and make crazy power (but with enough money you can do that with a sbc). Guided by the concept of HYPERFORMANCE, PCM produces the highest quality and longest lasting engines, which outperforms the competition in every way! about us ». Engine Factory 350 Chevy 350 Horsepower Engine. A Guide to Vortec vs OE Small Block Chevy Heads. View Full Version : swap 305 vortec to 350 vortec; Vortec 350 to Vortec 454 swap;. The spider intake system on 4. this one though i believe is mostly hype. The difference between a 305ci engine and a 350ci engine is the size of the engine displacement in cubic inches. With that, you take into consideration engine physics, and consider that the extra 23 cubic inches of the 350 is all via the crankshaft stroke, and you automatically gain more torque on a logarithmic scale than if it were 23 cubic inches by bore size alone. Sharing the 454's 4. Tech Tips 305 CID TPI Engine & Camshaft Courtesy of 3rd Gen Member ~ Vader. Chevrolet Small Block 305-307-350, Big Block 409 Rod Bolt Kit. Remove the wire from JS10 to the center hole of Q16. GM 350 TBI vs. florida4x4:. Because these are mainly commercial engines, we have them in stock and crated. Manufacturer of high performance cylinder heads and manifolds for ford and chevy. Our new engine sales department will make sure your order is exact and that you get the engine(s) that is right for you. That means an option available from GM when the truck was new. 350 mag alpha & bravo efi(gen+) $1295 861086t1: 350 mag alpha & bravo efi(gen+) $1295 806818t1 454 mag mpi bravo (gen vi) gm 454 v-8 & horizon: $1295 860253r1. The world's absolute lowest prices since 1985. This is a V6 engine that has had a long history, although much has changed along the way. 7L Vortec cylinder head is the best flowing production head Chevy has made for the Gen I SBC engine to date. 0L Vortec V-8 Specifications and Information. fits 1996 to 2002. Increased power for your 1996 to 2000 350ci Chevy Vortec 5700 V-8 engine See more Is a Rochester carb, for the 1975 model year, 49 state (federal) Q-jet, Chevrolet Division with supposedly a manual transmission. T700R4 is another story. 4 Bolt Main, Roller Cam, Full Round Seal, Vortec Cylinder Heads, Turn Key Engine, Arrives Ready To Run. 001 Throttle Ball Carb. this one though i believe is mostly hype. 3L Vortec built today is certainly significantly different from the original Vortec first offered in the mid-1980s. Firstly never use the engine size to relate to horsepower. 040 headgasket and vortec heads. 4 liters of fluid. me personally i am not too impressed with the hemi's numbers i mean come on ,a 5. 4 cylinder heads are supposed to be pretty decent. 3L V-6 gasoline engine features overall size and weight advantages with superior power-to-weight ratios and proven durability. The 454 just keeps pulling on big long hills. 4 Bolt Main, Roller Cam, Full Round Seal, Vortec Cylinder Heads, Turn Key Engine, Arrives Ready To Run. 00-inch stroke to 4. Finally! An exhaust gasket that really works! 100% graphite construction means Remflex gaskets can take the heat-up to 3,000º F! A built-in 50% crush allows Remflex gaskets to fill gaps in headers or exhaust manifolds up to 1/16-inch inch. 4 454 for my 5. 7L vortec from a 96-2000 chevy truck to make 400+ hp with the change of a cam, rocker arms, valve springs, distributor, carb and a manifold with NO machine work required. that truck goes 9. Offering discount prices on OEM parts for over 50 years. General Motor's 6. Michael Rasmussen; Massaprqua, NY: I have a 454 big-block from a Chevy truck in my Chevelle. Vortec heads can be installed on an older block, the tricky part is the intake manifold as the intake bolts are not the same pattern or specifically angle. Re: Vortec 454 mileage vs 350 07-17-06 04:45 PM - Post# 970770 In response to CharlieFoxtrot I've had several 454's (carbed) get over 15 on the highway, but with a very good QJ. A 348/409 vs. meaning both sizes are 350 cubes. the 383 uses only slightly more fuel than the 350. Authorized dealer with large inventory, great prices, fast shipping!. Two part numbers are listed and so there may actually be two cams. florida4x4:. This will fit all Vortec engines from the 4. Dollar for Dollar, it is highly unlikely that the $2400 for a full blown Banks Power Package would yield the same cost/benefit as say the addition of the UltraPower GM / Workhorse 7. WARNING: Add $350. Gen I small-block Chevy engine. since they used cams with lift in excess of the max. 350 For Torque I read in Superchevy an article that said the best build power-per-dollar they had done was a 350 ,vortec head, Edelbrock Performer Air Gap intake, Comp XE262h cam engine. 00 Chevy 383 / 350 HP 4 Bolt Performance TBI Balanced Crate Engine Truck Camaro $ 3,095. Lincoln vs Cadillac Forums. 7L-GM Marine Engines Shipped to :AK AL AR AZ CA CO CT DE FL GA HI IA ID IL IN KS KY LA MA MD ME MI MN MO MS MT NC ND NE NH NJ NM NV NY OH OK OR PA RI SC SD TN TX UT VA VT WA WI WV Canada. The Darts cost more than the Vortecs BUT you don't need to buy a vortec-specific intake manifold and you don't need to address the valvetrain issues that need to be paid attention with a Vortec head. 00-inch stroke to 4. 7 all night. Guided by the concept of HYPERFORMANCE, PCM produces the highest quality and longest lasting engines, which outperforms the competition in every way! about us ». Vortec cylinder heads significantly outflow non-Vortec service replacement cylinder heads and earlier OEM cast-iron heads. I had a 1992 rcsb TBI 350 auto 3. the Chevrolet 8. IMO 350's are the new 305, and 383's are the new 350. T700R4 is another story. 5 Detroit Turbo Diesel 1994 GMC Sierra Z71 350 TBI. Thought I had a problem with gas, changed fuel filters, had fuel pump checked and added Sea Foam. The GM vortec was a world of difference to drive, though we never got a chance to take it down the Daytona, I think the GM one was 36' as well. My opinion is that gas is a better choice unless you have extraordinary heavy pulling needs. Big Block Chevy 396 454 Steel Roller Tip Rocker Arms 1. cant beat the economics when it comes to a chevy motor. Firstly, my reasons for doing this: I just put a new crate engine in it last summer and Im trying to keep everything in good condition to make this truc. Top-rated Cam for Stock 454 List:. Automobile Engine Weights. Big Block Chevy Engine Build 454 C. 454 tbi vs Vortec. 4L (454) Custom Tuning module. These are all the needed changes to do the conversion. 0L Vortec V-8 Specifications and Information. Live it up! with the latest high-performance engine tuning products from Hypertech. 88-95 chevy c/k pickups had the 350 TBI and the 96-98 chevy c/k pickups had the Vortec 350, but which engine is better the Vortec 350 or the TBI 350. Personally, i think the only things you gain from an LS swap is the ability for immediate startup in all climate conditions, and the LS motor are more apt to take updgrades and make crazy power (but with enough money you can do that with a sbc). 7 liter found in say a 1997or 1998 chevy 1500 compare to the 5. This modification does typically require changing to the 350 5235206 truck injectors. Our new engine sales department will make sure your order is exact and that you get the engine(s) that is right for you. com source added. The difference between a 305ci engine and a 350ci engine is the size of the engine displacement in cubic inches. 4 liters of fluid. *RPO stands for Regular Production Option. cab had flowmasters and went 9. The 454's are 350 hp and the 350's are 310-330 hp. RED-85-Z51 is offline Quote. The 454 just keeps pulling on big long hills. The Vortec heads will bolt up to any of the old school SBC's. well for a long time i have been doing the math a turbo and a swap are about the same 3500 to about 5000 but the power you make with the turbo is very difficult to come by and the vortec 5. This article will explain the benefits of the GM CSFI to MFI Spider Conversion for All 1996-2001 4. This drawing is of the 1967 version of the 302 cid Chevrolet. Re: Vortec 454: School me! I think the heads being referred to as peanut port are the ones used on the TBI engines. I could count on 8-9mpg towing and 11-12mpg empty on the highway. 7 = 350) Then the 88-95 should work, Just double check your sensors and locations as the plugs may be different and or in different locations. The Vortec heads offer a wealth of power potential for their extremely low price. This drawing is of the 1967 version of the 302 cid Chevrolet. 5001 : 74 : 1971-73: 330862 : 400 : 1. chevy 350 vortec engine 96-00 4 bolt main truck applications Remanufactured and Rebuilt Engines for Cars and Trucks. My g-friens rcsb Vortec 4. There is a version of the Vortec 454 known as an L21 which was used on some 1999-2000 medium duty trucks, that one uses LS1 style PCM, DBW, CNP ignition and a short distributor body that acts an oil pump drive and 1X cam sync signal. Vortec V8 vs. Pretty sure the hp was within 10 of mine though. 3 which achieves it numbers by being able to spin high RPM's. 383 Chevy Stroker Turn-Key Crate Engine With 500 HP Starting at $8,995 *Shown with optional upgrades. Just truck, unloaded, consistently 10-11. com source added. Granted, this is after running them 24/7/210 a year for a couple of years. So I am in the process of rebuilding a 96 vortec 350. Most cars, even old muscle cars. Both engines would have a mild performance build, at a modest expense, like 750 to 850 dp carbs, aluminum double plain intakes, Iron heads, like vortec on the sbs and oval ports on the bbc, headers, moderate performance cams, around 9 1/2 to 1 compression, auto trannys, similar rear gears. I have been searching for rebuild kits and was getting confused about differences between and older 350 and the vortec engine so I wanted to post on here to get yalls expertise. Or just swap in a vortec 350, that would be a pretty slick motor. 1 and V-10 was that the 8. My father had a 98 3/4 ton with the 454/4l80e and it got about 8-10 towing up and down hills and about 12-18 doing regular driving on the freeway he got like 22 mpg once going to seattle. The Chevrolet L31 5. 7L 350 cid Vortec V8 1998 and newer Marine Engines Only Fits 8-Bolt Intake applications only. I had a 97 rcsb Vortec 350 auto 3. Now my buddy has a 98 regular cab 350 vortec with headers a tune full exhaust cai and a 373 posi. 08 gears and I got 580 kms a tank. I was able to drive it for a short distance (about 250 miles) and was pretty impressed how it just chugged along, it feels like a torque monster compared to the v10. 4 454 for my 5. I have a 69 Camaro with a 350 engine. The injectors are different sizes. The 454 camshaft has no seal as it is driven by a chain inside the cover. I would like the biggest bang for the $. Please share your thoughts. The issue stems from failure of the housing that in turn allows the distributor shaft bushing to wear out. 5:1 compression, 5. Draw a sharpie line as shown in the image below. The Vortec 454 is a exception regarding any trouble and the mileage was OK, 8-9 mpg on a 1998 29 foot Sea Breeze and trouble free for the 2 years that I owned it. Our Engine Wiring Harnesses change that. the Chevrolet 8. We now have a SAENZ model 680 flow bench which we all enjoy using. brand new Cylinder Head for GM 5. 4L 454 is an 8-cylinder engine. 4L 454 TRUE marine engine. 7 350 in my 97 Chevy 3500 4x4 crew cab. When we purchased our Suburban back then the dealer was a good friend of mine. Based on the highly successful and powerful Edelbrock Performer RPM intake manifold p/n 350-7101, this single four-barrel intake is designed for the street rod, marine and engine swap market utilizing 262-400ci Chevy V8s with 1996 and later Vortec (L31) cast iron heads or Edelbrock E-Tec aluminum heads. If you want to swap your 5. 1-litre with the Allison transmission. 7 Vortec vs. Engine Factory 350 Chevy 350 Horsepower Engine. GM offers a crate long-block assy that is a perfect match, but GM intended it to strictly be an OEM replacement and has absolutely no performance gain. It was an eight-cylinder engine with a multi-port fuel injector, and each cylinder had two valves that were operated by hydraulic roller cams. me personally i am not too impressed with the hemi's numbers i mean come on ,a 5. My gf dad has some friends at chevy that said they would drop a brand new 305 in it, installed, for $2000. 305 TPI to 350 TPI Conversion. Chevy SB 350/400 Main Series 9000 “Cast” Stock Replacement (2 piece rear seal) Street Performance;. Your test 454 was a pre-vortec engine ('94) and the vortec 454 was released in '96 (I think). So, what is an intake manifold? Well, basically it's a lump of metal that is formed to deliver air and fuel to the cylinders set in the engine block. Sought after for its durability, quiet operation and performance, the 350 has also earned a reputation for reliability and usability in a variety of applications, including boats. We have a large inventory of domestic crankshafts, however most import crankshafts are done on special order, please ask a salesman for further details. Cast-iron Vortec Cylinder Head Assembly • Completely assembled with 1. i was wondering if there were any difference in a gen 1 block and a vortec block. The Chevrolet Big Block V8 Engine The Chevrolet Big Block V8 In its most familiar and long-running format, the Chevrolet Big Block was Introduced in 1965 as a 396 CID powerplant and from that time forth, it has earned its own place in automotive history as one of the most well known tour-de-brute-force engines on the market. *Chevrolet Performance recommends the Holley 670-cfm carburetor (P/N 19170092) for use with the 350/290 Deluxe. The considerations I have are quickness to plane, fuel economy, technology, serviceability, parts and. I want to install a Big Block but am struggling to determine if a 427 CI or a 454 ci is the way to go. 7 Vortec I got 20 mpg and about 23 on the highway. Last night was test and tune night up here on the 1/8 mile track. The rocker arm is the link between the camshaft and the valves - functioning as a lever arm to multiply the cams lobe lift to the valve lift. GM Engine Information (Looking for Transmission info?Click here). How would this vehicle perform as a tow vehicle pulling my 30 ft overall enclosed (24ft box with tapered and wedge front) al. L59 denoted a flexible fuel version of the standard fuel LM7 engine. 0L Vortec V-8 Specifications and Information. ZZ4 350 Base. seems dodge is trying to cash in on its old reputation with the original hemi that was a very strong motor. I'm looking at options for rebuilding/replacing the long block assy for a '91 350 w/TBI and swirl-port heads (pickup truck donor). That translates to best-in-class reliability, dependability, and long-lasting performance. This will fit all Vortec engines from the 4. 0L Vortec L96 V-8 6. 4L with a 4L80E with a handshift transfer case. I'm looking at options for rebuilding/replacing the long block assy for a '91 350 w/TBI and swirl-port heads (pickup truck donor). 7 Vortec Long Block, Mercruiser Marine, 350 Crate Motors and Complete Turnkey Engines for Your Hot Rod, Muscle Car & Classic Truck!. Replaces castings 906 and 062. Select the number of cylinders: The 7. The 350 would last until 2002, primarily as a truck engine; after 47 years in production it would serve out its last days as an option in GM's full-size vans. By revving the engine and running it at different speeds, if the outer ring is loose, the line on the outer ring will be seen to move independently of the line on the inner hub. The dealership says "NEW" heads are about $1100 each, or he can get a remanufactured set for about the same price for the set of 2. I have a 69 Camaro with a 350 engine. of torque, the 6. 1: Tuning Potential. Fits virtually all small and big block Chevy engines including 305, 350, 454 CID prior to 1999 Gen III. Chevrolet 265-454, 8740, hex Cam. Grandma's 1966 Chevelle 4 door hardtop Vortec 454 - Duration: 1:15. 37, thanks to longer connecting rods and a block with taller decks. NEW PRODUCTS FROM PRO-FILER. How does the vortec 5. Dollar for Dollar, it is highly unlikely that the $2400 for a full blown Banks Power Package would yield the same cost/benefit as say the addition of the UltraPower GM / Workhorse 7. It is not a challenging job. GM TH350 Automatic Transmission. It is an all-aluminum 5. TBI is simpler and more reliable IME. Both truck were 2wd. 350 Takes A Place. I like the idea that 427 ci were installed in 69 camaros but 454 ci is bigger bang for the buck. Vortec 454 7. Anybody bought one of these?. I havent had both, but my vortec 350 is a beast compared to my carb'd 350. peace Hog. I have been searching for rebuild kits and was getting confused about differences between and older 350 and the vortec engine so I wanted to post on here to get yalls expertise. Will it make more horsepower than their recent Ford budget build? The dyno will reveal the answer. RV Chassis Features.