350-400 hp can astock head handle it ?
08-06-2007, 08:05 PM
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350-400 hp can astock head handle it ?
i have a built block with stock sleeves and i was wondering if the stock head will hold up to the power? its not my daily but i cant help but to want to drive it all the time! will it last? i wont be beating on it all the time just at the track and stuff!
08-07-2007, 12:03 PM
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Re: 350-400 hp can astock head handle it ? (a1320addict)
my head is all stock parts :
b16 casting and valves
itr springs and retainers
gsr cams
currently making low 400s spinning to 8700
b16 casting and valves
itr springs and retainers
gsr cams
currently making low 400s spinning to 8700
08-07-2007, 12:07 PM
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Re: 350-400 hp can astock head handle it ? (a1320addict)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320addict »</TD></TR><TR><TD CLASS="quote">Valvetrain fails at higher RPM than intended use, not horsepower.</TD></TR></TABLE>
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08-08-2007, 08:28 AM
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Re: 350-400 hp can astock head handle it ? (bigcity84)
last year i seen a guy run 9's in pomona on what he claimed a stock head. he said no port work, only valvetrain.
08-08-2007, 08:59 AM
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Re: 350-400 hp can astock head handle it ? (a1320addict)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320addict »</TD></TR><TR><TD CLASS="quote">LS? Valvetrain fails at higher RPM than intended use, not horsepower.</TD></TR></TABLE>
my thoughts exactly
my thoughts exactly
08-08-2007, 09:39 AM
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Re: 350-400 hp can astock head handle it ? (lunatics209)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lunatics209 »</TD></TR><TR><TD CLASS="quote">last year i seen a guy run 9's in pomona on what he claimed a stock head. he said no port work, only valvetrain.</TD></TR></TABLE>
i definately beleive it.
we usually rev stock head motors to stock rev limit or maybe 200-300rpms higher. they can be pushed farther but we dont take that risk nor suggest it for customer cars.
i definately beleive it.
we usually rev stock head motors to stock rev limit or maybe 200-300rpms higher. they can be pushed farther but we dont take that risk nor suggest it for customer cars.
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