how much of a gain should I get?
Thread Starter
Staging Lane
Joined: Aug 2005
Posts: 93
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how much of a gain should I get? My car Is a cam only car with 853 heads on the car. It has bolt ons a 230/236 cam and a F.A.S.T 90/90 setup on it. The car makes 415 hp with the 853 heads on the car and i just came across some 241 heads ans i was wondering how much the car will pick up from swapping the heads. I was also wondering how much i would pick up if I had the heads ported and polished over a stock 241 head.
Thanks in advance guys..
Thanks in advance guys..
On The Tree
Joined: Nov 2005
Posts: 191
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Originally Posted by s346k
i'd guess 15-20 rwhp using pp 241s.
just step up to some 243s, i bet you'd get at least that much of a gain without porting/polishing.
just step up to some 243s, i bet you'd get at least that much of a gain without porting/polishing.
853 to 241's aren't going to be a huge improvement from what I have heard. They are slightly revised but nothing like the 243's (LS6 head). I HAVE heard that you can port the 241's nicely and they'll perform well...so maybe its worth looking into Texas Speed porting ($650 a pair). Otherwise, dont' go thru all the effort swapping heads from 853 to 241....go straight to 243's.
