Pontiac - Street No question too basic here!

          
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 09-07-2020, 06:21 PM
wbnapier wbnapier is offline
Chief Ponti-yacker
 
Join Date: Sep 2017
Location: Encinitas, CA
Posts: 590
Default Catastrophe - New Engine Likely Seized

In April, I started building an engine, and today was the first real drive other than around the block and in running in the driveway for tuning purposes.

Downshifting while exiting the interstate, I lost power and needed to be towed home. I thought I had an electrical issue or something, but after going over the engine this afternoon, the worst is apparent. In nuetral, spark plugs out, dizzy out, I am unable to rotate the motor with a breaker bar.

A couple of the spark plug gaps had completely closed, indicating detonation or something weird.

It is a 0.040" over 455, 4.25" stroke. Butler rotation assembly, Stump Puller II cam, etc., etc., Pistons were dished for 91 CA gas. Tri-Power, medium ported #48 heads, etc. Everything redone, no expense spared. Block, heads, etc. all prepped by a really good machinist. Not a single leak.

I will have to sell the car as is. No more time or money. '65 GTO, 4 speed, 3.55 gears, PS, no AC. Not a stock, car, but a good mild restomod. I don't know what I can sell a non running GTO for, but hopefully cover my loss on the engine. Not a good Labor Day.

__________________
1965 Pontiac GTO
455/469 w/ #48 Heads, '65 Tri-Power
9.25:1 CR
Stump Puller Cam
Muncie M22W 1st-2.56 2nd-1.75 3rd-1.37 4th-1.00
3.55 Rear Differential
Front: 225/60R15 Height: 25.6"
Rear: 275/60R15 Height: 28"
 


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 -4. The time now is 02:43 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017