• Inboard style pistons, designed to clear most counterweights and reluctor wheels.
• Forced Induction applications of 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

							Compression Ratio
Part #:	Stroke:	Rod:	C.D.:	Weight:	Pin:	CC's:	62CC:	66CC:	70CC:	Ring Set:	Bore:	Block Size:
11574*	4.000	6.125	1.115	390	.927 x 2.200	-28.0CC	8.6	8.3	8.1	09063905	3.905	5.7 Liter LS1 Block
11575*	4.000	6.125	1.115	415	.927 x 2.500	-28.0CC	9.0	8.7	8.4	09064000	4.000	6.0 Liter LS1 Block
11576*	4.000	6.125	1.115	420	.927 x 2.200	-28.0CC	9.1	8.8	8.5	09064030	4.030	6.0 Liter LS1 Block
11577*	4.000	6.125	1.115	456	.927 x 2.200	-28.0CC	9.7	9.4	9.1	09064125	4.125	Big Bore/Resleeved LS1 Block

*Includes Oil Ring Support Rails

All items are non-stocking parts, made to order as necessary.

Shipping $9.99