I’m real hesitant to buy anything like heads, cam or intake. Till I’m sure what I need to buy to achieve desired affect.
I want to keep the car drivable for the summer and start on motor this winter. I sure would like to have a direction when it comes to headers. I have a complete 2-1/2 inch mandrel bent dual exhaust kit I would like to put on the car now. But I need to figure out headers first. Any suggestions?
I have used 2 different headers both from Hooker. The cheapest was the 2455 full length designed for 68-72 A-body cars like the Chevelle. Took some massaging to fit but for $100 or so I was happy. I believe I had to grind out some of the lower control arm mount and move the brake proporting valve back on the frame a few inches. The latter probably isnt NEEDED but I don't like the idea of hot brake fluid.
My current headers are the Hooker slip tube 2241 headers made specifically for BBC swaps in G-bodies. These are much more expensive but they are "tuned" and fit better. The only reason I made the switch was because I found them dirt cheap out of the blue locally. Only downside besides the price is dealing with the slip tubes leaking. Will need high temp silicone while assembling them.
Both headers, if not ALL headers will need some relief ground out on the bottom of the mounting flange when using bigger head bolts like ARP. Both headers mentioned are full length, 2" primary into 3.5" collectors.