Fits 1973-1974 GM C-10/20 2WD, 1-7/8", Long Tube Headers-Ceramic 70101504-1HKR in-tank-fuel-lines The mounting holes on these

The mounting holes on these water necks are slotted to fit all model years of the GM (General Motors) LS Series engines

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5551498

5L V8 1970 Chevrolet Impala Base 250/4

4L 390 CID

106-0490’s precision mandrel bent pipes facilitate superior exhaust flow compared to the crush-bent pipes commonly used in competing aftermarket replacement exhaust systems

Fits 1973-1974 GM C-10/20 2WD, 1-7/8", Long Tube Headers-Ceramic 70101504-1HKR in-tank-fuel-lines The mounting holes on theseHooker BlackHeart LS Swap Full Length Header Ceramic Coated; 1973 1974 GM C 10 20 2WD Trucks, Full Length LS Swap, 1 7 8", Collector Size 3". These Headers are designed for use with Standard 12621HKR engine mounting brackets. Features: For GM LS engine swaps into 1973 1974 GM C 10 20 2WD Trucks 1 7 8" primary tube diameter and 3" collector diameter ideal for "hot" LS1 LS6 LS2 or 5. 3L 6. 0L Vortec truck engine swaps Long tube design for optimum engine