Head Casting # 462624
Thread Starter
Pro
Joined: Oct 2000
Posts: 629
Likes: 1
Head Casting # 462624
Are these heads a waste a time for me if I'm trying to build up a 300-350 horsepower 350. Should a stash them away and go aftermarket or could they work with the right cam and intake combo. If it matters I'm running 3:55's at the back end with a stock tranny. Thanks all! :seeya
[Modified by Indynut, 11:53 PM 9/27/2001]
[Modified by Indynut, 11:53 PM 9/27/2001]
Racer
Joined: Jul 2000
Posts: 290
Likes: 4
From: Jax, FL
Re: Head Casting # 462624 (Indynut)
http://everythingnova.homestead.com/headflow1.html
Look up the flow numbers in the link above.
I've seen lots of bracket cars running those heads and the 461's and 041's with some port work, a valve job, decent cam, and running 12's and 11's.
Look up the flow numbers in the link above.
I've seen lots of bracket cars running those heads and the 461's and 041's with some port work, a valve job, decent cam, and running 12's and 11's.
Safety Car
Joined: Dec 2000
Posts: 3,767
Likes: 5
From: Jacksonville Fl
Re: Head Casting # 462624 (89gta383)
Those are the same numbers my 79 L82 had, and my 78 Silverado had them too...
THey are a generic unleaded gas head, the L82 version had 2.02/1.60 valves and screw in studs, the truck head did not have either.
THey are a generic unleaded gas head, the L82 version had 2.02/1.60 valves and screw in studs, the truck head did not have either.
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: Head Casting # 462624 (Ganey)
Ganey is right, they suck, on the intake the boss for the valve cover bolts is in the way and on the other side the pushrod hole so you can't port match, the chamber design is very poor....better get some other heads if you plan on doing a rebuild.
Shaving is out of the question on almost all of them, they have such thin decks that even a minor shave will compromise head gasket seal on the exhaust side
Marck
Shaving is out of the question on almost all of them, they have such thin decks that even a minor shave will compromise head gasket seal on the exhaust side
Marck
