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BIG BLOCK FORD

BIG BLOCK FORD TECHNICAL AND PARTS SITE

OAKLEY MOTORSPORTS ENGINES, CUSTOM CARBS, COMPLETE ENGINE MACHINING, PORTING SERVICE AND DYNO SERVICE. CALL 270-344-0912, 270-929-5185


Piston

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BIG BLOCK FORD :: GENERAL TECH :: ENGINE TECH

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Post  pigs521bbf May 11th 2018, 8:18 pm

I’m gonna order some pistons for my 521 bbf. I called Diamond and they suggested #40515 but I’m wondering if this piston will work because it’s with iron CJ heads that are ported by Scotty. I am changing pistons because I am thinking about using some nitrous. Any suggestions?

pigs521bbf

Posts : 173
Join date : 2013-04-10

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Post  pigs521bbf May 11th 2018, 8:35 pm

Sorry the motor is 0.40 over and rods are 6.8

pigs521bbf

Posts : 173
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Post  The Mad Porter May 13th 2018, 4:34 pm


That is not the correct piston.

Icon is a good bet.

https://www.uempistons.com/index.php?main_page=product_piston_info&cPath=8_9_13&products_id=281&zenid=76a390a83d2fd0410e55d664661495d1


We typically use Racetec, Autotec or Icon pistons when better slugs are needed.




S
The Mad Porter
The Mad Porter

Posts : 230
Join date : 2009-08-07
Age : 61
Location : Tacoma, Washington

http://www.reincarnation-automotive.com

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