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Our online store remains open while we post intermittently during our office xmas holiday closure on the 20th Dec.Office Storefront reopening on the 6th Jan. Expect postage delays between 20/12/24 and 06/01/25.
Made in the USA.
Diamond Pistons are considered one of the best in the performance industry.
LS Competition Series
This Diamond forged piston set for 4.065 Bore (LS3)
BORE: 4.065" STROKE: 4.000" ROD LENGTH: 6.125" COMP HEIGHT: 1.115" 416ci
2cc Dish. (valve relief)
ALSO SUITS L8T 3.860" Stroke using 6.200" rod 400ci
BORE: 4.065" STROKE: 3.860" ROD LENGTH: 6.200" COMP HEIGHT: 1.115"
Pin .927 Pin offset .04 Weight 455 Grams
In the 4.000" stroke option with 68cc heads compression will be approx 11.5:1
In the 3.860" Stoke with 6.200 rod and 68cc heads compression will be approx 11.3:1
(Machining and Head gasket thickness, head cc and or changing other components may alter compression ratio.)