Mystery predator engine

Ras1986

Member
I have a 300cc cylinder head in front of me I need a valve for. It came off of a predator engine model 63966. Harbor freight has no manuals for this engine with THIS head. A gx270 head fits on this engine with no problem but the push rods don't work and the valves are much longer. I have no idea who's clone this is. Any help is appreciated!!
 

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Ras1986

Member
Sorry. More specs.
Valve length. 3.625
Stem Dia. 7/32
Ex Dia. 1.125
In Dia 1.250
Cylinder bore Dia. 3.1875
Measurements are within +/- .100 don't have calipers with me
 

Ras1986

Member
Talk to Stout racing engines. He has knowledge of the engines
I will reach out to him. I have spent hours researching who makes a similar head that harbor freight copied. I cannot find anything remotely similar from Honda, generac, kawasaki or any other company. It's like a brand new cylinder head mirroring the 212 and 420cc hemi heads they copied from generac. Generac doesn't makes a 300cc hemi head yet.
 
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