Why does no one run stage 3 heads? $$ issue?
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TECH Junkie
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From: Republic of Texas
Why does no one run stage 3 heads? $$ issue? I know stage 3 heads cost a buttload. Is that why I see almost no one running them? Are they too much head for the street? How much more power would they make on a stroker over S2's? I guess I just want to know the deal with them in general.
Adkoonerstrator
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From: Deep in the seedy underworld of Koonerville
Re: Why does no one run stage 3 heads? $$ issue? I think most companies stage 3 heads are just stage 2 heads with the combustion chamber opened up for bigger bores.
There may also be some reshaping done to the ports(welding) but, I think that's more of an option that can be done for any head/motor combo, not just big bore motors.
John
There may also be some reshaping done to the ports(welding) but, I think that's more of an option that can be done for any head/motor combo, not just big bore motors.
John
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From: Freeland, MD
Re: Why does no one run stage 3 heads? $$ issue? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 11 Bravo:
<strong>I know stage 3 heads cost a buttload. Is that why I see almost no one running them? Are they too much head for the street? How much more power would they make on a stroker over S2's? I guess I just want to know the deal with them in general.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">No problem with them at all on the street. Very, very civil. Remember that even heads with insane flow number still flow at a rate determined by the cam, valve sizes, displacement, and (obviously) the throttle blade position.
They do cost more, but the HP/torque gain is worth it, provided the shop doing the head porting ports well.
Most people with the stroker/big bore motors are running the stage III heads.
<strong>I know stage 3 heads cost a buttload. Is that why I see almost no one running them? Are they too much head for the street? How much more power would they make on a stroker over S2's? I guess I just want to know the deal with them in general.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">No problem with them at all on the street. Very, very civil. Remember that even heads with insane flow number still flow at a rate determined by the cam, valve sizes, displacement, and (obviously) the throttle blade position.
They do cost more, but the HP/torque gain is worth it, provided the shop doing the head porting ports well.
Most people with the stroker/big bore motors are running the stage III heads.
Resident Grump
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From: Walker County Alabama
Re: Why does no one run stage 3 heads? $$ issue? Please define stage 3.... Really I see the stage 1, 2 and 3 term thrown around and I've yet to understand what the differences are. I've got a pretty good set of heads but I don't know what stage they are.
