Dual valve relief Diamond Racing pistons are now available exclusively from CarsByCarl.
These pistons include the following features:
-Valve reliefs for OEM and
Kaase SCJ/P-51 heads
-Ideal for somebody building a stroker with OEM style heads that plans to upgrade to SCJ/P-51 heads in the future.
-Dish volume and upgraded pins intended for big cam, high power engines.
-4.390 to 4.550 diameters available
-1.345 Compression hieght
-4130 chrome moly steel wrist pins
-Dual Spirolox wrist pin retainers
-1/16, 1/16, 3/16 ring pack
-Wrist pin does NOT intersect oil ring
-Internal milling for light weight
Approximate compression ratios: (with 4.42 bore)
4.3 stroke / 95cc heads = 9.5:1
4.3 stroke / 80cc heads = 10.66:1
4.3 stroke / 75cc heads = 11.12:1
4.3 stroke / 72cc heads = 11.42:1
4.5 stroke / 95cc heads = 9.9:1
4.5 stroke / 80cc heads = 11.1:1
4.5 stroke / 75cc heads = 11.6:1
4.5 stroke / 72cc heads = 11.9:1
Please call or email for pricing.