Can anybody tell me what this is?

[JayO313]

Do you have any other specs for your engine?
Are these factory GM cast iron heads? And if so do you have a casting number?

Oh yeah im running a 670 holley 4 barrel double pumper..with a dual plane intake.468 flat tappet cam.. thats about all i know

 

[565bbchevy]

Oh yeah im running a 670 holley 4 barrel double pumper..with a dual plane intake.468 flat tappet cam.. thats about all i know

Is this a Comp Cams 468? .
As far as I know the Holley 670 CFM carbs are all vacuum secondary carbs

 

[JayO313]

Works been kicking my *ss but i finally got some time.. is this the casting number I need 462264??

 

[JayO313]

Is this a Comp Cams 468? .
As far as I know the Holley 670 CFM carbs are all vacuum secondary carbs

 

[565bbchevy]

462264 casting number is apparently not a very good head as far as performance and is very crack prone.

 

[JayO313]

462264 casting number is apparently not a very good head as far as performance and is very crack prone.

You got any suggestions for a good top end rebuild.. I still want to stay on pump gas

 

[ssn696]

Dart S/R Torquers are about $1100 a pair, 67 or 76 CC. 2.02/1.60 valves. Set up for both old-school perimeter or centerbolt valve covers. I put a pair on my 400 and they helped pull a Malibu wagon to 14.67 with an Edelbrock 1406 carb and 268-ish cam on 87 octane.

www.summitracing.com/parts/wrl-042670-1/overview/

 

[drogg1]

Dart S/R Torquers are about $1100 a pair, 67 or 76 CC. 2.02/1.60 valves. Set up for both old-school perimeter or centerbolt valve covers. I put a pair on my 400 and they helped pull a Malibu wagon to 14.67 with an Edelbrock 1406 carb and 268-ish cam on 87 octane.

They are a pretty good deal. I have actually ported a set and can say it is worth it to do a quick cleanup of casting flash and polish the exhaust.