Quote:
Originally Posted by b-man
If your Edelbrock heads have round exhaust ports then the 389 would have to have round port heads too for the headers to work. 389 engines never came with round port heads.
Edelbrock in recent years did produce D-port heads (two center exhaust ports look like the letter D back to back) so it’s possible your headers from your 461 would work.
As long as the type of head as in exhaust port style match your headers will work.
Keep in mind that round port Edelbrock heads will have a flat on the exhaust port floor at the port exit flange but they’re still considered round port.
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Thanks for the response. That helps. The car is still new to me, so I’ll figure out exactly what heads I have now (whether D-port or not).