CHEV / FORD / HOLDEN MOLY PISTON RINGS . 4" BORE + 0.40 # 40564.040 Rate_Special Non variable pitch

Non variable pitch

and idle (including IAC parameters and idle spark)

They feature all necessary vacuum ports

Fits late model GM disc brake and early drum brake applications

1 Push-In Breather

CHEV / FORD / HOLDEN MOLY PISTON RINGS . 4" BORE + 0.40 # 40564.040 Rate_Special Non variable pitchCHEV FORD HOLDEN MOLY PISTON RINGS . 4" BORE + 0. 40 # 40564. 040 Mahle Product Details Piston Rings, Plasma moly, 4. 040 in. Bore, 5 64 in., 5 64 in., 3 16 in. Thickness, 8 Cylinder, Set Bore (in.): 4. 040 in. Bore (mm): 102. 616mm File Fit: No Gapless: No Gas Ported: No Top Ring Included: Yes Top Ring Thickness: 5 64 in. Top Ring Material: Cast iron Top Ring Facing Material: Plasma moly Second Ring Included: Yes Second Ring Thickness: 5 64 in.