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These can be used on std or aftermarket plenum manifolds
high to work with tall or stock valve covers
Get rid of those old fuel bowl floats and upgrade to one of these Speedmaster carburetor floats
Not only do you get more performance out of the box than OEM heads
Permanent molds provide a tighter grain casting thereby reducing the occurrence of porosity which can mar the polished finish
H Beam 6.135" 2.200" .990" 4340 Connecting Rods Chevy BBC 454 w/ ARP 8740 These can be used onSpeedmaster H beam connecting rods are one of the strongest connecting rods available. Speedmaster H beam connecting rods are perfect for supercharged and nitrous applications. These rods incorporate a special doweled cap for specific cap to rod alignment and are profiled with extra clearance for stroker applications.
