KEITH BLACK PISTONS-Std Pistons with 11.8:1 Compression Ratio. Fits Milwaukee-Eight 2017up with Big Bore 107ci to 124ci 4.250in. Cylinders.

Description

Features & Benefits:-

* Super Duty KB Forged Coated Anodized Piston Kit.

* 107ci to Big bore 124in. piston kit for Milwaukee 8 when using 4.250in. Bore Cylinders

* 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 1.5mm 1.5mm 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.

* The 4.250in. bore will net 124in. with a 11.8:1 compression ratio with a stock cylinder head.

* Valve Pockets designed to accept up to a +4mm oversized intake and exhaust valves.

* Requires Daytonain.Drop Inin. 4.250in. bore cylinders #DAY-88186.

* No Case machining required.

* 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.