84TD
Full Access Member
I just found out today my pistons are backordered until september. Anyone know where to get a set in stock?
.020 Over 6.9 Pistons needed
- Thread starter 84TD
- Start date
84TD
Full Access Member
Anybody know where I can check? I would consider bigger than .020 over too. I looked at summit and jegs but I dont really know anywhere else.
84TD
Full Access Member
cant believe I forgot about ebay, I found a seller with a set. What do you think this means?
THIS IS FOR .010" DESTROKED ENGINE
http://www.ebay.com/itm/FORD-NAVIST...pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr
THIS IS FOR .010" DESTROKED ENGINE
http://www.ebay.com/itm/FORD-NAVIST...pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr
justinray
Contributor
I think that if it says really big THIS IS FOR A DESTROKED ENGINE, then it's probably for a destroked engine and I would move on.
dyoung14
Is getting worn out
Dave Barbieri
Full Access Member
"Destroked" means the top of the piston is .010" closer to the wrist pin. The piston doesn't sit as high. If you install them, you'll lower your CR slightly. These pistons are a big help if you're having your block decked. I'm having that done as part of my rebuild, so I purchased Mahle destroked pistons to go back in. The .010" extra space will more than cover what was removed in the decking procedure.
Dave beat me to it. Those pistons are designed to use in blocks that have had machine work on the head deck.......... like mine.
The wrist pin is 0.010 higher in the piston, that decreases the compression height 0.010 as well. On a stock block the compression ratio will drop to 19.7:1. Some guys use them with stock blocks to lower compession when planning to run more boost.
Heath
The wrist pin is 0.010 higher in the piston, that decreases the compression height 0.010 as well. On a stock block the compression ratio will drop to 19.7:1. Some guys use them with stock blocks to lower compession when planning to run more boost. Heath
icanfixall
Official GMM hand model
Buy them. They just machined the pin higher up in the piston to lower the piston 10 thous in the block. Good find too because first off you found a set of 20 over plus... They are a better lower comp piston...
84TD
Full Access Member
Cool thanks guys, got a set on the way, talked to the seller, already shipped. Hopefully by this time next week ill be starting the lengthy process of plastiguaging the bottom end and then reassembly.
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