Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. Roundwire locks, tool steel wrist pins and pressure balance grooves are included with every set at no additional charge. These COYOTE Pistons include valve reliefs that will accommodate 1mm oversized valves. FOR YOUR COMPRESSION RATIO WITH THESE PISTONS PLEASE SEE THE CHART BELOW
Dish Volume: 12cc
Compression Height: 1.165"
Standard Bore: 3.630" (Available in .005" and .010" over)
Top Ring: 1.2 mm
Second Ring: 1.2 mm
Oil Ring: 3 mm
Pin Included: Chrome-Moly steel P/N 42207 ( .150" wall, 2.500" long )
Round Wire Locks: P/N 42270 - .061" wide
Recommended Piston Clearance: .003" measured .850" from bottom of the oil ring
COMPRESSION RATIOS |
OEM 4V Head |
12cc Dished with 5.0 Coyote Engine |
9.00:1 |