Quote:
Originally Posted by ponchjoe
Hey all,
I am going back and forth on taking my .040 400 to 435 with a 4” crank or just going with the 408 and spending money on ported heads.
The car is a 67 LeMans that will be street and highway only with an OD and 3.55 gears. I have 670 non ported heads that need everything and I have a line on some 670s that are ported and ready to go with no flow numbers unfortunately.
For this street only application, is the additional cubes a benefit over the ported heads or vice versa?
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I'm considering a very similar build. 428 with 670 heads for street and highway as well. I was considering sending the heads off for chamber work and leave them non ported. My thought was to keep the port velocity high at lower RPM cruising. The comments above have me a bit discouraged. Except for i82much's comment. That hilarious LOL