Frankenstein M311 Aluminum Cylinder Head - Bare - 2.165 / 1.600 in Valve - 273 cc Intake - 71 cc Chamber - GM LS-Series Backup Washer An excellent performance upgrade

An excellent performance upgrade

000 volts of pure spark energy to the plugs for a cleaner

2007-2014 Ford Mustang

A1000 Marine

TH350 / TH375B / M38 1968-81

Frankenstein M311 Aluminum Cylinder Head - Bare - 2.165 / 1.600 in Valve - 273 cc Intake - 71 cc Chamber - GM LS-Series Backup Washer An excellent performance upgradeProduct Description: Cylinder Head M311 Bare 2. 165 1. 600 in Valves 273 cc Intake 71 cc Chamber Aluminum LS3 GM LS Series A designer and manufacturer of top quality high performance cylinder heads and intake manifolds for GM's popular LS series engines as well as other performance powerplants, Frankenstein Engine Dynamics specializes in taking a high output engine to the next level. They also offer premium camshafts and valvetrain components designed