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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: chevyfan on February 16, 2007, 12:32:00 am

Title: head numbers
Post by: chevyfan on February 16, 2007, 12:32:00 am

i recently bought a 350 to replace the 305 in my truck and i ran the head numbers and it appears they are 80-82 heads from a 267, should i try to find a set of 350 heads or would these work fine. The motor has flat top pistons and appears to have a cam, also a double roller timing chain and an edelbrock intake. I have not done anything to this motor i was plannin on just replacing the gaskets and oil seals, but if these heads are no good then i will try to find a new set.
the head number i read was 14014415

Edited by: chevyfan at: 2/16/07 12:33 am

Title: Re: head numbers
Post by: Lt.Del on February 16, 2007, 09:02:00 am

How did you obtain the engine??  Those heads are for a 267, and one site shows that they could have been placed on a 305 as well.

My two-cent guess is that the valves are smaller than a typical 350 head.  Whether you should pursue locating a true 350 head set is really dependant upon your budget.  

SgtDel
aka "Andy"

www.delbridge.net

1979 Big 10 383 stroker
1991 Blu 'Burb 3/4 ton 4x4

Title: Re: head numbers
Post by: VileZambonie on February 16, 2007, 04:40:00 pm

Are you sure you bought a 350? It's odd that someone would put those heads on a 350

Title: Re: head numbers
Post by: chevyfan on February 16, 2007, 08:17:00 pm

well i guess im more asking is there a major drawback in using those heads? Yes i ran the numbers on the engine and it is a 350, i bought the motor from a good friend of mine and it ran fine before, i just thought it was odd those heads were one there. would there be a noticable difference with the 350 heads. Im looking to have a truck reliable and decent on the speed, its also my daily driver.

Title: ?
Post by: VileZambonie on February 16, 2007, 09:14:00 pm

Well it depends, if you want max power from your pumper those low flow heads are like you trying to run a marathon with a plastic bag over your head.