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| | | Joined: Apr 2010 Posts: 23 'Bolter | | 'Bolter Joined: Apr 2010 Posts: 23 | So I couldn't bolt the heads onto my freshly machined 265 today. The head bolts only have 2 lengths instead of the typical 3 different lengths like later heads. I have searched in vain this afternoon including manufacturers websites, forums and anywhere else Google led me. Any ideas on where to get the correct stuff? Thanks
Last edited by Redline; 09/07/2019 11:00 PM.
Don't pay no mind to that whirrin' sound, she uses a little oil but outsida' that she's cherry.
| | | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | Are the long head bolts for the later model engines the correct length? If so you only need to buy 4 bolts to complete the set. Dorman head bolts used to be available for individual purchase. If you can't find them that way, one option would be to purchase a second set of head bolts and use enough of the ones that are the correct length to complete the job. Head bolts don't know, or care what size engine they're in, as long as the length, thread engagement, and torque is correct.
Using studs the right length with nuts and hardened steel flat washers from ARP would be another, but much more expensive option.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Apr 2010 Posts: 23 'Bolter | | 'Bolter Joined: Apr 2010 Posts: 23 | They seem to be a bit long but I didn't try to torque anything down. Are the long head bolts for the later model engines the correct length? If so you only need to buy 4 bolts to complete the set. Dorman head bolts used to be available for individual purchase. If you can't find them that way, one option would be to purchase a second set of head bolts and use enough of the ones that are the correct length to complete the job. Head bolts don't know, or care what size engine they're in, as long as the length, thread engagement, and torque is correct.
Using studs the right length with nuts and hardened steel flat washers from ARP would be another, but much more expensive option.
Jerry
Don't pay no mind to that whirrin' sound, she uses a little oil but outsida' that she's cherry.
| | | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | Use a 7/16" diameter Grade 8 hardened steel SAE flat washer under the bolt head if the bolts thread too deep into the block. They're available on Ebay in several different thicknesses and quantities- - - -very low cost and very useful in a lot of applications. I've built a lot of small block round track race engines with them. I was using them to adjust the thread engagement on head bolts used with heads that had been angle-milled for changing the compression ratio.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | Nope- - - -that's for the late model 265, not the mid-1950's engine. That set has two intermediate-length bolts that aren't used on the 50's heads.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jul 2007 Posts: 444 Shop Shark | | Shop Shark Joined: Jul 2007 Posts: 444 | In my 1958 parts manual it says ,
V-8 (exc.348) , Head Bolts
1955 to 1958 , so that would cover the 265 V-8
SHORT BOLT - 7/16 ' - 14 X 1 & 3/4 "
GM # 0.293 - GM # 3704796
Dan's GM Obsolete
Chinook , Montana
phone : 406 - 357 - 2615
Dan's probably has some in stock .
LONG BOLT - 7/16 " - 14 X 3 & 3/4 "
GM # 0.293 - GM # 3741278
Craig Motors
Napa , CA.
phone : 800 - 224 - 8111
Craig Motors probably has some in stock
I think these are going to be hard to find NOS .
George
'54 3600
Last edited by '54 3600; 09/09/2019 3:46 PM. Reason: add
| | | | | Joined: Apr 2010 Posts: 23 'Bolter | | 'Bolter Joined: Apr 2010 Posts: 23 | Thanks for the help so far, still looking.
Edit. One of the Corvette parts houses has them, Just ordered a set.
Last edited by Redline; 09/11/2019 12:09 PM.
Don't pay no mind to that whirrin' sound, she uses a little oil but outsida' that she's cherry.
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