View Full Version : intake installation with milled heads

05-17-2005, 10:23 PM
does anybody what i have to do to get my ls6 intake to fit with milled .55 60cc ls6 heads? getting ready to install next week and i read that the intake bolt holes have to be ground down? is this true? and if so how much?

05-18-2005, 06:23 AM
you have to notch the holes at each LPE or PM Ed Potter.they'll let you know exactly what you need to do.

05-18-2005, 03:52 PM
Is that for any milled heads or anything under 61CC?

05-18-2005, 05:52 PM
Is that for any milled heads or anything under 61CC?not any milled heads,just ones that have a lot milled off of them,like .055 .mine were milled .045 and i'll probably have to notch the bolt recesses too.

05-18-2005, 05:55 PM
whoops,i just noticed you didn't say what heads you had,i assumed they were the GMPP ls6 heads,that's why i said to call LPE. :emb:

05-18-2005, 06:33 PM
How much compression does that give you? What length pushrods are you gonna use?

05-18-2005, 10:05 PM
11.2:1 compression. gmpp calls for 7.350 pushrods

05-18-2005, 10:19 PM
id like to know this too because i plan to mill mine in the future