| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
10-02-2013, 05:20 AM
|
|||
|
|||
400 block damage pictures and cam question
Hello again everyone, I have a question I was hoping to get a few opinions on.
First, I recently acquired a 67 block with an XJ date code. The block itself seems to be in good shape with one exception. I have attached an image of damage on the rear of the block, near what I think is a thread for an oil pan bolt. Is this a deal breaker for this block? Is it repairable? Second quick question. The current motor in my car is a 68 400 originally out of what I believe to be a Catalina. It was a 2 barrel with #15 heads. I swapped out the intake and carb for an Edelbrock Performer and a Q-Jet. Now the car runs well but it's still lacking on a little power it seems. I've read that the heads aren't the greatest, but I'm investing in E-heads for a new build so I'm just sticking with these heads for the time being. But would a cam swap, to say a Summit 2801 provide any extra power? I appreciate any advice you could provide! |
|
#2
10-02-2013, 06:26 AM
|
||||
|
||||
|
The letters XJ are the block code. Sorry would not know if the hole is a deal breaker or not. I would suspect there is a fix available for it though.
__________________
Scott If you always do what you always did  You always get what you always got  
|
|
#3
10-02-2013, 06:31 AM
|
|||
|
|||
|
I'm sorry, I meant block code. The date code is M226 if I recall without going to look at the block.
|
|
#4
10-02-2013, 06:39 AM
|
||||
|
||||
|
That hole is not a problem, as its not in a high stress area.
That is a location hole for machining of the block at the factory. Just to be safe grind it out so that its more round and has no sharp edges to it that will possible let a crack get started. The 2 bbl cam in the 68 400 is the bulk of your lack of power issue, and also whatever the basic condition is of a motor that old without a re-build.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
| Reply |
|
|
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.
Linear Mode
