05/23/2026
BBC 049 iron oval port heads rebuilt with K-line bronze guide liners installed reamed & honed , machined guides for .530 viton seals , cut valve seats 4 angle intake & radius multiple angle exhaust , surfaced -.015 , bowls blended , 2.19/1.88 stainless valves with 30 degree back cut on intake valves , Erson dual springs , steel 10 degree retainers & locks , Comp cams spring locators , SBI .530 viton seals , Erson 7/16” rockers arm studs & Manley 3/8” pushrod guide plates.