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02-15-2016, 02:50 AM
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#1 |
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Registered User
Join Date: Mar 2014
Location: Salt Lake City
Posts: 128
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Destroking a vortec 454 into a 427 or 440?
Ive never really looked into the vortec stuff much i just bought a 98 2500 with a dead 454 its a green extended cab longbed are any of you familiar with doing that? Also whats a good combination i want to make between 470-550 hp and same for torque
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02-15-2016, 03:03 PM
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#2 |
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driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,763
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Re: Destroking a vortec 454 into a 427 or 440?
440 is a chrysler. Get a stock 3.76" crank and you have your 427. But your doing this with a peanut port head so there is no point. Do research, there is everything you can imagine available on the subject already written and waiting for you to read and learn about.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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02-15-2016, 03:03 PM
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#3 |
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At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,448
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Re: Destroking a vortec 454 into a 427 or 440?
Why not a 4.25" and be 489 inches ?
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" That didnt make it any newer " " Dont antique the equipment " |
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02-15-2016, 10:22 PM
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#4 |
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Registered User
Join Date: Jan 2014
Location: Indpls. , IN
Posts: 795
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Re: Destroking a vortec 454 into a 427 or 440?
The vortec heads aren't a "peanut port" head, they are more of a large oval. If I had a way to send a pic easily I would add it (after a trip to the garage ).
OP, you want a stroker , nothing to be gained by reducing the cubic inches. OR - just a 454 rebuild and with a better cam should be right there, as long as you don't strangle the intake or exhaust.
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Tim K. 84 K30 srw Silverado 454 auto 85 C20 350 C6P auto flatbed 94 K1500 lifted shortbed 350 4 bbl NV4500 Last edited by 68post; 02-15-2016 at 10:24 PM. Reason: never |
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02-17-2016, 09:04 AM
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#5 |
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Registered User
Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
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Re: Destroking a vortec 454 into a 427 or 440?
L29 head won't care for a dome and you'll need one with a 3.766" stroke.
Rebuild it as a 454 and deck the block, add a towing cam 214/221 on a 114 LSA and pair of headers. Then get it tuned. You'll have a torque pig that'll actually knock down some decent mileage. |
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