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Posted

Selling the heads / cam out of my ls swapped mustang.

The heads are new gm 799's (3000 km on them) they are milled .030 They have new yellow springs aswell. (compression is 11:1 on an LQ4)

Delta cam , specs are : 224/230 @ .050 .580lift on a 112 c/l

Also including new 43lb injectors.

This combo made 430 whp on a LQ4 with 93 oct.

 

 

 

I found this for sale on kijiji for $1000

Posted

the compression difference between an lq4 and a 9 is about .5, so on an lq9 look to be at 11.5cr. not exact but close. That will be somewhat high for pump gas. the 430hp is slightly off too, but then again an ls2 at 11:1 comp makes 400hp so its close to being correct

Posted

I was told that they are -8cc but by my calculation it came out to -6.8cc. I have a set of LQ4 pistons in the garage that I will try to get measured.

Posted

Brad I do not know the exact -cc of the lq4 pistons. I was just going by engine specs. Sinner is about right though, mathematically at least

Posted

The complete package is a good deal, but I wouldn't run that high of compression on pump gas... your timing would have to be spot on and so would fuel quality... or mix pump gas with some race gas at every fill up...

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