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82 GT · 05-17-2003, 06:44 PM

Is(has) anyone running "Thumper" heads? I'm thinking about buying a set to add to my engine combo I'm building.
They claim to out flow the GT-40 series heads.(219cfm and 158cfm).
I can get a set for about $700 which includes shipping?
They are ported and polished E7 heads complete with 5 angle valve job,valves,springs etc..
I want to keep the Comp 292 cam so I decided I would just build around the cam and not the heads I have now.
I figured with the Thumper heads, I would be running solid 12's
What do you guys think?

05-17-2003, 06:44 PM	#1
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Anybody running "Thumper" heads? Is(has) anyone running "Thumper" heads? I'm thinking about buying a set to add to my engine combo I'm building. They claim to out flow the GT-40 series heads.(219cfm and 158cfm). I can get a set for about $700 which includes shipping? They are ported and polished E7 heads complete with 5 angle valve job,valves,springs etc.. I want to keep the Comp 292 cam so I decided I would just build around the cam and not the heads I have now. I figured with the Thumper heads, I would be running solid 12's What do you guys think? __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.