Bottom End help!!! Turbo LT1
I've been browsing through long enough now and need to ask for some advice. I have a OFI single turbo through the stock motor right now havent driven it yet but want to forge the motor soon enough to not blow anything. I want to eventually run 12-14psi through. What kind of rotating assembly should i look into for a good 383. What kind of success have you boosted lt1's had a with a forged motor where should i go for parts or assemblies. This will be a frequently used car as well. I dont know the engine that well to piece by piece without some help.
I will be going with ported stockers as well for heads and havent decided on a cam but figure a custom grind from comp cams |
you will need to get the compression down, a forged piston set, rods, and crank would be highly recommended for 14psi. I would personally recomend eagle 4340 forged crank, eagle 3d h beam rods, upgrade to the arp bolts, and a srp or other forged dished piston...i think for the compression levels you would want for a 383 the dish is around -30cc's
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is it better to go with a piece by piece setup or a complete assembly
and if i go with a piece by piece where do i go to get this type of stuff? whats the diffrence from 350 to 400 main and 4 bolt to 2 bolt |
not trying to be rude, but i think you need to do some research on the lt1 and sbc, this forum is a great place to start too!
to answer your question, you need an lt1 specific crank, for one piece rear main seal, it has 350 mains. preferably start with a 2 bolt main block, and convert to 4 bolt splayed caps. You need to find a machine shop/engine builder in your area to talk with. piece by piece? you cannot simply swap out components in a motor, the rotating assembly has to be ballanced for each compenent before installed. edit: did you mean buy a complete rotating assembly or buy individual peices? if thats what you meant thats your call. check out www.cnc-motorsports.com |
i know i dont much ive looked around and just had questions since everyone seemed to have superchargers and figured it would need diffrent components
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We carry a variety of manufacturers for rotating assemblies such as Eagle, Compstar, and Callies. We also have fully assembles short block packages starting from $2,600. Please feel free to browse our website, and if you have any questions don't hesitate to contact us.
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