Roadrunner40
Well-Known Member
Sidewinders from Marsh Performance with about a 100 miles on them. These are 84cc heads and have a stage 1 valve job by Larry Smith. Upgraded SI Valves
with 10 degree locks and retainers and clip on valve seals no expense spared ! Heads flow 295 CFM @600. Has Comp 924 double valve springs for Hydraulic can 123 seat and 295 open pressure.
Good to about .525 lift. These heads are like new and Made serious power on my 440. I’m going back to manifolds and a more stock approach.
$1300
Located in Eastern Ohio
with 10 degree locks and retainers and clip on valve seals no expense spared ! Heads flow 295 CFM @600. Has Comp 924 double valve springs for Hydraulic can 123 seat and 295 open pressure.
Good to about .525 lift. These heads are like new and Made serious power on my 440. I’m going back to manifolds and a more stock approach.
$1300
Located in Eastern Ohio
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