427 heads
Thread Starter
Staging Lane
Joined: Dec 2005
Posts: 61
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From: reno
427 heads OK i searched and searched and came up with many differant answers. I am doing A 427 stroker on my ls6 i have LQ9 heads and ls6 heads which head would be better to use if i get them worked over by a shop? if they need to be at all?
or should i get different heads and how much do they cost$$$
thanx
or should i get different heads and how much do they cost$$$
thanx
I would think that the ls6 heads would flow better, but you'll be at high compression. I'm building an engine right now so this is where Ive been spending alot of my time http://www.diamondracing.net/cocalc.htm
Originally Posted by Chris 96 WS6
I thought the 6.0 Liter heads had LS6 ports, but bigger chambers. I guess I thought they would have flowed similarly when ported out.
lift intake exhaust
.100 70.2 59.3
.200 143.4 128.7
.300 216.8 188.7
.400 270.0 232.1
.500 311.9 257.2
.550 330.0 264.0
.600 343.8 268.0
Wish the chart had gone up to .650, would probably have seen 350cfm
Originally Posted by Chris 96 WS6
I thought the 6.0 Liter heads had LS6 ports, but bigger chambers. I guess I thought they would have flowed similarly when ported out.
