Head choice for boosted LSX
#1
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Head choice for boosted LSX
Have a 427 ,LSX block ,forged and studded bottom end,LS7 heads with studs,650 - 240 cam, Vortech YSI running 14 # on meth. 1200 hp intercooler. LS7 intake and ported throttle body with 85 # injectors and aeromotive 2000 pump.Has 9.4 compression. Attached to a 6 speed tranzilla. Dynoed at 740 rwhp.Want to turn it up but know the LS7 heads are the weak spot.Would love to hit at least 1000 rwhp. We run 94 fuel up here in Canada so I should be able to avoid detonation.What is the best head for this swap and is this all I need beside the pulley swap?
Last edited by geeman; 12-09-2017 at 02:33 PM.
#6
We made 1170 before the rps twin started slipping, with 4 bolt heads never pushed any water on a LS7 then went to a 4L80 e made 875 rear wheel hp and went 8.81 and that was
8 years ago same kit Andy’s ysi Ron Shearer 1500 hp his big *** intercooler it was two 3 in
Garret cores welded together, I think no I know the ysi will run out of smoke before the stock heads are a problem
8 years ago same kit Andy’s ysi Ron Shearer 1500 hp his big *** intercooler it was two 3 in
Garret cores welded together, I think no I know the ysi will run out of smoke before the stock heads are a problem
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#12
I was at 21 pounds on four bolt heads never pushed any water , yes 6 bolt is better but 4 bolt heads have made a lot of power just saying