Keith Black Pistons KB542LCA.STD Standard Flat Top Pistons w/11:1 Compression Ratio for M* 17-Up w/Big Bore 114ci 117ci to 120ci Conversion

* Super Duty KB Forged Coated Anodized Piston Kit.

* Big bore 120in. piston kit for Milwaukee 8.

* Factory 114in. and 117in. cylinders are used to bore to 4.125in..

* No head modification required.

* Anodized top ring groove and crown.

* Line2Line abradable skirt coating applied to .003in. total thickness for a Zero initial fit to allow coating to hone in for a tight quiet running clearance.

* Round Wire Locks.

* Premium Hastings 1.2mm 1.2mm 3.0mm Steel Nitride top ring with a Ductile Napier second.

* Forced wrist pin oiling

* Complete kit includes: two pistons, rings, wrist pins and clips.

Tech Tips:-

* Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.