Aluminised Silver Heat Sleeve - 1-1/8" to 1-1/2"I
they also offer specially heat-treated (case- hardened) yokes for your roller-bearing extension housings and chromoly Powerglide 2-piece cases that dramatically reduce transmission changes
Filter Material: High Flow Premium Media
Part Number : 2083
31" Intake Port
Proflow Cylinder Heads, AirMax 170, SB For Ford 289, 302, 351W, Aluminium, Asse Air Cleaners Aluminised Silver Heat Sleeve -Part Number : Proflow Cylinder Heads, AirMax 170, SB Ford 289, 302, 351W Proflow does not sacrifice quality for a low price you get both with our aluminium cylinder heads. The lightweight heads are cast from A 356 aluminium alloy with a large choice of engines, for SB & BB Chevrolet, LS Chev Holden Ford SB 289 351W, 302, 351 Cleveland 2V & 3V & BB FE, and Chrysler SB & BB. They have phosphorous bronze valve guides, and ductile iron valve seats for use