Question On 6.0L Heads on a 346 ????
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From: St.Peters, MO
Question On 6.0L Heads on a 346 ???? I got some ported and polished 6.0L heads with bigger valves from my buddy. I have a stock bottom end 346 with a 232/234 cam. I know that these heads are a little big for my car. Speed INC said these heads on a 346 would lower my compression to about 9.1 and that it would run like *** N/A. Is the compression to low to spray nitrous? Should i put the heads on or not? Thanks
Last edited by 96prplz28; May 24, 2007 at 08:41 AM.
Originally Posted by 96prplz28
I got some ported and polished 6.0L heads with bigger valves from my buddy. I have a stock bottom end 346 with a 232/234 cam. I know that these heads are a little big for my car. Speed INC said these heads on a 346 would lower my compression to about 9.1 and that it would run like *** N/A. Is the compression to low to spray nitrous? Should i put the heads on or not? Thanks
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From: BFE
If these are milled 71cc heads then PTV should be measured for that cam. That is like ~ 4cc mill or .025
The 232/234 if on 113 "should" clear and if 112/112+2 or 112+4 better measure on intake side just to be sure.
The 232/234 if on 113 "should" clear and if 112/112+2 or 112+4 better measure on intake side just to be sure.
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From: St.Peters, MO
Originally Posted by TA2SLOW346
If those are my old heads they are 67ccs
Thanks for all the help
Last edited by 96prplz28; May 25, 2007 at 10:09 AM.
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From: BFE
Originally Posted by 96prplz28
Yes they are your old old heads. So would i be fine swapping them since they are 67cc or would it lower the compression to much? The cam is the Torquer 2 i was going to go with the 112 but should i go with the 113 instead. So these heads are milled -4 degrees?
Thanks for all the help
Thanks for all the help
I would pick a cam that can fit with a tight LSA to maximize your DCR.
Like a 227/230 .629/.612 112+2 (LSK/XFI) lobes from Comp cam (Custom order)
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From: St.Peters, MO
Originally Posted by Mike94ZLT1
If a 6.0 liter has a 4" bore and you can put 6.0 heads on an LS1 with a 3.9" bore, why can't you put L92 heads on?
Originally Posted by TA2SLOW346
Heads where milled .040 But the sides of the chambers where opened up to fit a 4.100 bore i used to run