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These pistons are available in the OEM compression ratio (9.3:1) in both the OEM bore (87.5mm diameter) as well as a 0.5mm overbore (88mm diameter). The 2618 alloy used for these pistons is an excellent choice for racing applications. These pistons feature an OEM sized 22.5mm wrist pin which matches the Manley H-Beam Rods.

We generally recommend 2618 pistons for racing and non-daily driven applications. For racecars which double as daily drivers we recommend the Mahle 4032 OEM compression pistons paired with the Manley H-beam Rods.

Recommended Rods

Description:

Manley pistons are machined of high strength 2618 material providing a piston which is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through Manley's unique "one fixturing" manufacturing method that assures maximum horsepower. These pistons utilize a proven offset wrist pin design and include 1.5, 1.5, 3mm Total Seal ring package and moly coated skirts for ultimate performance. Roundwire locks, tool steel wrist pins and pressure balance grooves are included with every set at no additional charge.

Platinum Series Piston feature includes:

• Lightweight design with offset wrist pins for quiet start ups
• .150" x 2.250" wall premium Chrome Moly pin included
• Pressure balanced groove
• Will accomodate +1mm valve sizes
• Recommended piston clearance of 0.0035" measured 1.100" from the bottom of the oil ring

Specification:

• Rod Length 6.136"
• Stroke (mm): 83
• Comp Distance: 1.291"
• Dome Volume (cc): -7.3
• Comp Ratio: 9.3
• Piston Type: Dish
• Premium Steel top ring set and round wire locks included