This is topic refreshing a 302 block in forum General Talk at Northern California Ford Owners  .


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Posted by mike50quiroz (Member # 13908) on :
 
So i came across this block that has 5A12 stamped and researching it says it came out of a 65 mustang. My question is how are these blocks compared to the 302s on the fox bodys from 79 to 93? are they stronger weaker? im going to replace rings,bearings,bolts and put the ford X cam. Its going to be just a cruiser car
 
Posted by CoyoteMike (Member # 13748) on :
 
If its stock, stock heads and an X cam its a great block (pretty much the same as a fox block)
 
Posted by 4IDFOX (Member # 9921) on :
 
You will need some link bar retro fit lifters to run a roller cam in that block.
 
Posted by SLOWBACK 67 (Member # 6348) on :
 
quote:
Originally posted by 4IDFOX:
You will need some link bar retro fit lifters to run a roller cam in that block.
He could drill and tap the lifter valley but I would advise using link bar lifters. Also you might wanna double check and see if that's a 289 block.
 
Posted by mike50quiroz (Member # 13908) on :
 
im going to transfer what i have in my fox right now
witch is gt40p heads ported,1.7 roller rockers, harden pushrods,trickflow intake, 70mm throttle
body. curently i have the trickflow stage 1 cam was thinking of going with the stage 2 but just decided to go with the x cam
 
Posted by mike50quiroz (Member # 13908) on :
 
im going to transfer what i have in my fox right now
witch is gt40p heads ported,1.7 roller rockers, harden pushrods,trickflow intake, 70mm throttle
body. curently i have the trickflow stage 1 cam was thinking of going with the stage 2 but just decided to go with the x cam
 
Posted by 4IDFOX (Member # 9921) on :
 
quote:
Originally posted by SLOWBACK 67:
quote:
Originally posted by 4IDFOX:
You will need some link bar retro fit lifters to run a roller cam in that block.
He could drill and tap the lifter valley but I would advise using link bar lifters. Also you might wanna double check and see if that's a 289 block.
If my memory is correct. The base circle on most roller cams is larger the flat tappet cams. This will move the lifter higher in the bore witch will cause oil starvation to the lifters. A retro lifter would be a safe way to go. The oil groove is in a different place or is wider on a retro lifter than on a stock roller lifter.

If its a c5 block it is a 289 or 260. 302s didn't arrive till 67

[ 2015-10-22, 08:51 PM: Message edited by: 4IDFOX ]
 
Posted by wilit (Member # 3367) on :
 
If it's a '65 block, also make sure what bellhousing bolt pattern it has. In mid-'65 they changed from a 5-bolt to the modern 6-bolt pattern. Also, pretty sure you would need to run retro-fit lifters. I believe the lifter bore depths are different which would prevent you from running 5.0 roller lifters and the spider tray.

[ 2015-10-22, 10:27 PM: Message edited by: wilit ]
 
Posted by mike50quiroz (Member # 13908) on :
 
the block is exactly as my block that came off my 91 Gt and that is a stock 91 block
 




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