Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

355 inquiries

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Old 10-24-2014, 08:46 PM
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355 inquiries

I have a 91 trans am lb9 tpi that i am currently in the middle of building a 355.
I have the block complete and have speed pro flat top .010 pistons. I am having a set of 186 heads machined, hardened valve seats, stainless valves "2.02,1.60" and port and polished. I am having the factory lower intake ported and going to be running 58mm tb and 24 lb injectors.
I have heard since my cr will be over 10.3 to 1 i need a bigger cam "i was going to run a xe262h cam". What are some recommendations from fellow 3rd geners who have built similar engines?
Old 10-25-2014, 04:16 PM
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Re: 355 inquiries

Nothing?
Old 10-29-2014, 03:42 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
XE262H should be fine.
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