Most prefer to use a 235 head as the compression is lower on the 261's heads.
Casting #'s for a 261 head are different than the block #'s. Here are some 261
head #'s I have: 3836850
3708570
3703570
3835913
3835499
If you are intent on using a 261 head I have one I may sell for the right
price.
Grant 50 3100
Rich Gallagher wrote:
> I think I found a '61 261 head for my Chevy short block 261, but the guy
> says to check the casting number that I need for the 261 head. Are the
> casting numbers on the cylinder head the same as the casting numbers on the
> blocks? (I've got inliners' list.) If not, can anyone point me to a place
> where I can find casting numbers for a 61 261 cylinder head?
>
> This is my first post although I have been a member of this list for over a
> month. Boy, you guys really know you stuff! My son, Adam, and I are
> working on our Chevy 1950 1 ton (3800) with duals and a hoist (we're going
> to swap the full pressure 261 for the present 216) and also on a 56 Chevy
> 3200 on which we are doing a frame-up restoration so he can use it as his
> daily driver when he gets his license in about 6 months.
>
> Thanks for you help.
>
> Rich Gallagher (Montana)
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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