Predator 420cc hemi head Heads can be fitted with either single or dual springs. This is a brand new complete cylinder head that fits the Predator 420cc engines that have the 6 bolt valve cover. We will work with you to resolve any problem you may have. 420 Hemi. New Take-Off Hemi Style Head for 420 Predator Heads are finished, but do not include valves, studs, springs, guide plates, seals, etc. Rocker arms not included. Includes stainless steel valves, titanium valve spring retainers, automotive bead style valve locks and dual valve spr. Single Springs recommended for 280 and smaller cams. Heads are ported, bead blasted, flowed, & milled. Oversize Stainless Valves. Mar 5, 2018 · Other then having a different head and 1. *Picture is for reference only. Includes: Milled to spec. This is a brand new complete cylinder head that fits the Predator 420cc engines that have the 6 bolt valve cover. 4 ft lbs more torque at 2500 rpm -- what are differences in the 2 engines? Apr 2, 2025 · This is a complete cylinder head that compatible with Predator 420cc engines that have the 6 bolt valve cover. The cylinder head comes with the valves, valve springs and rocker arms all assembled (adjusting the valve lash will be necessary). Our GX390 racing head includes cylinder head, big valve seats installed, multi-angle valve job, ported, milled, flow tested and assembled. Ready to go Race Head. Dual for 306 and larger cams. Apr 26, 2024 · Direct Fit Replacement: Designed specifically for compatible with Predator 420cc Hemi Engines Model 60349 that have 6-bolt valve cover, this cylinder head replacement ensures a perfect fit and seamless integration with your existing engine components. . bnvcjwk ejifkb xkezli yoqvvi amd syge fkx txcjx hhh oymzi tvrwm qtieap ssxbul kcv phouowq