how to id heads - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RED72blazer · 12-31-2002, 06:28 PM

I know it's a stupid question, but where do I find the casting numbers? what are good castings?

thanks guys

red

cableguy0 · 12-31-2002, 06:38 PM

the casting numbers should be near where the rocker arm studs are under the valve cover

RED72blazer · 12-31-2002, 06:43 PM

462624 are those them? what are they?

Hutch · 12-31-2002, 06:52 PM

Here is what mortec's website says:

462624.....75-86...350/400......76cc chamber, 1.72/1.5, 1.94/1.5 or 2.02/1.6 valves

I am not sure how to rank these, there are quite a few head experts on the board. I am sure they can let you know the value.

Have Fun

robby · 12-31-2002, 10:46 PM

I would pass unless they are really cheap. They are light castings and tend to crack. See my other reply.

12-31-2002, 06:28 PM	#1
RED72blazer urban fourwheelin Join Date: Aug 2002 Location: Seattle Posts: 1,007	how to id heads I know it's a stupid question, but where do I find the casting numbers? what are good castings? thanks guys red __________________ 1972 K5 Blazer with Cummins 4BT, NV4500 swap in the parts gathering stage.

12-31-2002, 06:38 PM	#2
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	the casting numbers should be near where the rocker arm studs are under the valve cover __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

12-31-2002, 06:43 PM	#3
RED72blazer urban fourwheelin Join Date: Aug 2002 Location: Seattle Posts: 1,007	462624 are those them? what are they? __________________ 1972 K5 Blazer with Cummins 4BT, NV4500 swap in the parts gathering stage.

12-31-2002, 06:52 PM	#4
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	Here is what mortec's website says: 462624.....75-86...350/400......76cc chamber, 1.72/1.5, 1.94/1.5 or 2.02/1.6 valves I am not sure how to rank these, there are quite a few head experts on the board. I am sure they can let you know the value. Have Fun __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS

12-31-2002, 10:46 PM	#5
robby Semper Fidelis Join Date: Dec 2001 Location: Cedar City, Utah Posts: 654	I would pass unless they are really cheap. They are light castings and tend to crack. See my other reply. __________________ 72 Chevy C 20 with 402 For sale 85 GMC K2500 83 Trans Am Cedar City, Utah (Missouri Native)



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