The Ford Barn

RKS.PA · 09-05-2023, 07:23 PM

Am rebuilding the heads on my '56 312 ci Y Block and am having trouble finding replacement head bolts that are the proper length, particularly the two longer ones that go on the ends of each head.

Any help is very much appreciated!!

paul2748 · 09-05-2023, 07:31 PM

Try John Mummert in CA. or Ted Eaton in Texas. They do not have to be 312 bolts, the 272's and 292's used the same length bolts.

55blacktie · 09-05-2023, 11:20 PM

55 (and I'm assuming 54) did not use two different length bolts under the valve covers. My 55 Tbird has a 56 block and 55 heads. It does have the longer end bolts. Ted Eaton said that Grade 8 bolts are an improvement over the originals. I would consult Ted about using washers (if necessary) if the bolts are a bit longer than the originals.

RKS.PA · 09-06-2023, 05:11 PM

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Thank you, Paul, and 55blacktie,

Talked with John Mummert today and ordered the ARP bolts for the '56 312.

Even CASCO doesn't carry replacements, so guessing not enough demand. Only reason I'm not reusing the originals is I'm missing one of the proper length head edge bolts, and couldn't find a grade 8 replacement the right length.

Also found a great explanation of the different Y Block head bolts by Gil Baumgartner in his "Gil's Garage" write up.

09-05-2023, 07:23 PM	#1
RKS.PA Senior Member Join Date: Jun 2010 Location: Marana, AZ Posts: 1,194	1956 312 ci cylinder head bolts Am rebuilding the heads on my '56 312 ci Y Block and am having trouble finding replacement head bolts that are the proper length, particularly the two longer ones that go on the ends of each head. Any help is very much appreciated!!

09-05-2023, 07:31 PM	#2
paul2748 Senior Member Join Date: May 2010 Location: Midland Park, NJ Posts: 3,982	Re: 1956 312 ci cylinder head bolts Try John Mummert in CA. or Ted Eaton in Texas. They do not have to be 312 bolts, the 272's and 292's used the same length bolts. __________________ 48 Ford Conv 56 Tbird 54 Ford Victoria

09-05-2023, 11:20 PM	#3
55blacktie Senior Member Join Date: Aug 2020 Posts: 442	Re: 1956 312 ci cylinder head bolts 55 (and I'm assuming 54) did not use two different length bolts under the valve covers. My 55 Tbird has a 56 block and 55 heads. It does have the longer end bolts. Ted Eaton said that Grade 8 bolts are an improvement over the originals. I would consult Ted about using washers (if necessary) if the bolts are a bit longer than the originals.

09-06-2023, 05:11 PM	#4
RKS.PA Senior Member Join Date: Jun 2010 Location: Marana, AZ Posts: 1,194	Re: 1956 312 ci cylinder head bolts Sponsored Links (Register now to hide all advertisements) Thank you, Paul, and 55blacktie, Talked with John Mummert today and ordered the ARP bolts for the '56 312. Even CASCO doesn't carry replacements, so guessing not enough demand. Only reason I'm not reusing the originals is I'm missing one of the proper length head edge bolts, and couldn't find a grade 8 replacement the right length. Also found a great explanation of the different Y Block head bolts by Gil Baumgartner in his "Gil's Garage" write up.