- - Are LS7 heads to much for a 408?
(https://ls1tech.com/forums/generation-iii-internal-engine/424920-ls7-heads-much-408-a.html)
snketr
12-20-2005 12:44 PM
Are LS7 heads to much for a 408?
Are they to big for the 4.030 bore? I'm building a 408. Thanks
Nate_Taufer
12-20-2005 12:52 PM
Yes you need a 4.06 bore minimum. Wait for the L92 heads to come out.
Nate
snketr
12-20-2005 01:06 PM
Waht are the L92 heads? And when will they be out?
GPowrie
12-20-2005 01:54 PM
ls7 small bore
we are also offering a small bore ls7 using a smaller valve and chamber, but still using a stock LS7 manifold, and stock ls7 rockers.
Quickin
12-20-2005 02:00 PM
Originally Posted by GregP@ETPerformance
we are also offering a small bore ls7 using a smaller valve and chamber, but still using a stock LS7 manifold, and stock ls7 rockers.
For a 4.100 bore are your 265 41's still going to outflow the LS7 heads?
Red12secZ28
12-20-2005 06:21 PM
What size runner is on your small bore ls7 heads and what do they flow? Just curious.
Cary@Perf-Induction
12-20-2005 09:52 PM
heads
Originally Posted by Quickin
For a 4.100 bore are your 265 41's still going to outflow the LS7 heads?
they are really neck and neck. the ls7 is a little better is some areas and the 265 in others. REmember though, the 265 has a 2.100/2.125 valve and the LS7 has a 2.200 inlet valve. On a larger race engine, they sometimes like the larger valve.
As far as flow and port volume, I should have that answered by next week, Were still programming and machining, and being that it is computer generated, kinda gotta wait til we have a finished part.
