462624 head casting any good?
05-05-2007 | 05:45 PM
#1
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From: Kentucky
Car: 89 Iroc Z
Engine: Gen 1 350
Transmission: 700r4
Axle/Gears: Stock and shitty
462624 head casting any good?
are these heads worth a ****? do they flow well i cnat find and flow specs or anything ont hem really i beleice it has 194 150 valves
05-05-2007 | 09:06 PM
#2
Joined: Aug 2006
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From: Central NJ
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: 462624 head casting any good?
if im remembering the #'s correctly, 76cc crack prone and crap
05-06-2007 | 10:22 AM
#3
Joined: Sep 2005
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Car: Yes
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Re: 462624 head casting any good?
Right; they are among the very worst.
1.94" / 1.50" is the stock valve sizes for the majority of 350 heads. Nothing special about that at all.
They can be made to flow OK, they can even have 2.02" intakes and 1.6" exhausts installed in them. However, one of the things that a flow bench WON'T tell you, is that they'll crack between the valve seats if you enlarge the valves (they're bad enough about that with what comes in them). Furthermore, there's some places that get REAL thin in the exhaust ports, that will also crack if they're ported.
They are trash. Throw them there and get something decent.
1.94" / 1.50" is the stock valve sizes for the majority of 350 heads. Nothing special about that at all.
They can be made to flow OK, they can even have 2.02" intakes and 1.6" exhausts installed in them. However, one of the things that a flow bench WON'T tell you, is that they'll crack between the valve seats if you enlarge the valves (they're bad enough about that with what comes in them). Furthermore, there's some places that get REAL thin in the exhaust ports, that will also crack if they're ported.
They are trash. Throw them there and get something decent.
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