Go Back   The Supercar Registry > General Discussion > Technical & Restoration


Reply
 
Thread Tools Display Modes
  #11  
Old 07-31-2024, 11:52 AM
big gear head's Avatar
big gear head big gear head is offline
Yenko Contributing Member
 
Join Date: Mar 2012
Location: KY
Posts: 3,191
Thanks: 5,021
Thanked 1,196 Times in 674 Posts
Default

Be sure to check for bent rods. Also check the block deck and heads to see of they are flat.
__________________
Freddie
1969 Camaro RS/SS396 (427) 4 speed
Reply With Quote
The Following User Says Thank You to big gear head For This Useful Post:
John Brown (07-31-2024)
  #12  
Old Today, 06:05 PM
bav70ss bav70ss is offline
Member
 
Join Date: Nov 2006
Location: Comox, BC
Posts: 34
Thanks: 0
Thanked 0 Times in 0 Posts
Default Detonation

Quote:
Originally Posted by bav70ss View Post
We pulled the heads on my 67 Nova SS with a 327 and found coolant in the cylinders. Both headgaskets were toast on my new 700 mile motor. Any ideas as to why this would happen?
After an expensive rebuild of my detonated 327 my builder/machine shop figured out the timing mark on my larger harmonic balancer from a 350 didn't jive with my 327. At TDC the mark was out 14 degrees so he scribed a new correct mark on my balancer.
This wasn't the first motor I lost to a bad timing mark. The first build didn't have forged pistons so it was toast after 40 miles. The 2nd build lasted 700 miles...fingers crossed for the 3rd build!
__________________
'70 Nova SS L34, M21, bench seat
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 09:20 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.

O Garage vBulletin Plugins by Drive Thru Online, Inc.