Thread: BBC header question

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I use several different forums to get my car info and questions answered, but this question most definatly belongs here at Club Hotrod.

I have a 454 that I am putting in my Topolino street car I am building. The motor was driven into my shop and ran great. It had been recently built, some slight performance cam is evident in its lumpy idle. Removing the valve covers revealed roller rockers. Beyond this, I know nothing more about the motor.

I have installed an old Edelbrock tunnelram and a big holley(780 ? I think) carb on the motor.

I found thise headers for a great price. I will know in a couple days if they fit because the owner is going to bring them by the shop and we will be able to hold them to the motor as the motor is in the car.

They are 2 3/8" tubes and a 4 1/2" collector.

The tubes are larger than I have been looking at.

Any opinions as to how well they will work? or wont work?