Diamond Pistons from RPM Machine

• Inboard style piston designed to clear most counterweights and reluctor wheels.
• Forced induction applications up to 25lbs of boost. 2618 alloy.
• Offset wrist pins for quiet operation.
• Ratios figured for “0” deck @ 9.240”.
• Standard 1.5mm x 1.5mm x 3.0mm ring package.
• Premium H-13 wrist pins included.
• Gasket volume = 11.8cc.
• Top ring down = .300”.
• Valve relief depth = .165” intake and .107” exhaust.
• Items are non-stocking parts, Made to order as necessary.

5.7 Liter LS1 Block: 3.898" Standard Bore
Part #	Bore	Stroke	Rod	C. D.	Wt	Pin	CC's	Comp Ratio			Purchase Online
								62cc	66cc	70cc
								8.6	8.3	8.1
11574* $846	3.905	4.000	6.125	1.115	390	.927	-28.0				Discounted Prices

6.0 Liter LS1 Block: 4.000" Standard Bore
Part #	Bore	Stroke	Rod	C. D.	Wt	Pin	CC's	Comp Ratio			Purchase Online
								62cc	66cc	70cc
								9.0 9.1	8.7 8.8	8.4 8.5
11575* $846	4.000 4.030	4.000	6.125	1.115	415 420	.927	-28.0				Discounted Prices

Big Bore/Resleeved LS1 Block
Part #	Bore	Stroke	Rod	C. D.	Wt	Pin	CC's	Comp Ratio			Purchase Online
								62cc	66cc	70cc
								9.7	9.4	9.1
11577* $846	4.125	4.000	6.125	1.115	456	.927	-28.0				Discounted Prices

* Includes Oil ring support rails.