Pistons listed with a compression ratio range: low number is with un-cut deck, high number is block decked to .030 piston to cylinder head clearance. Always check piston to valve clearance - If using VTEC or like mechanisms-check w/ longer duration higher lift lobe. Always run at least .030 piston to head clearance including gasket thickness. If piston appears to be different than expected, please do not hesitate to call Performance Auto Parts at 888-732-1595 to verify compatibility.
Footnotes:
1. Most Wiseco pistons have offset pins. Pins must be offset same as o.e. for quietest operation (pin offset will be opposite of direction of engine rotation).
2. Due to a compression height that may protrude above the deck, it is recommended that a .040" thick head gasket is used.
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