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Putzer · 02-01-2019, 09:00 PM

i have an lq4 with flat top pistons essentially making it an lq9. Put a cam in, milled the heads and had a shop test it at close to 10:1 compression if I remember correctly. If youre going FI id suggest to start with lq4 as youll have lower compression than lq9 and will have an iron block, or at least all gen iii are.

02-01-2019, 09:00 PM	#8
Putzer Registered User Join Date: Jun 2018 Location: Columbus Posts: 95	Re: 454 vs LS vs LQ9 i have an lq4 with flat top pistons essentially making it an lq9. Put a cam in, milled the heads and had a shop test it at close to 10:1 compression if I remember correctly. If youre going FI id suggest to start with lq4 as youll have lower compression than lq9 and will have an iron block, or at least all gen iii are.