Originally Posted by UCNTRY
hey this is mainly to xdclevo my the pistons in my motor are L2379 and when you quoted your part number you said they are L2379F now could this mean i have hypers in mine how do you tell the difference between the two
Yeah, i never thought they made a standard, but maybe they do.
I can't even remember if mine had the F stamped on the actual piston. This is what i found on the TRW L2379F. It also answers other things i allways wondered about like valve releife volume and clearance. My spec sheet lists them having a min clearance of 1.5 thou, but at the pin. Less than i thought.
_________________________________________________________________Higher compression, longer life.
Piston, Forged, 4.030 in. Bore, 2-5/64, 1-3/16 Rings, Flat Top, Each
Thanks to a special aluminum alloy that doesn't expand as much as other alloys, these Power Forged pistons are designed to fit tight, providing the stability and ring control you need plus the strength you want. Speed-Pro even added ribbed skirts to them for better oil retention and even includes new wrist pins!
Vendor Sealed Power
Product Line Speed-Pro Power Forged Pistons
Bore (in) 4.030
Piston Material Forged aluminum
Piston Style Flat
Compression Distance (in) 1.647
Dish Volume (cc) 1.50
Valve Reliefs Two
Wrist Pin Style Press fit
Pin Diameter (in) 0.9120
Top Ring Thickness 5/64 in.
Second Ring Thickness 5/64 in.
Oil Ring Thickness 3/16 in.
Quantity Sold individually