Or you could simply ask the advice of the knowledgeable guys like Ponchoshop, Banshee, 428HO, etc., instead of trying to guess yourself into an expensive non-performing motor.
Please dont confuse my attempt at humor as a lack of willingness to learn...I am a young guy, with 4 kids ranging from 10 to 15 y/o running around here somewhere, time and money are very important commodities, but rather than standing around at a car show, hitchin up my britches, sayin "Yeeeep, built it muah self" I'd like to get a feel for the what, why, and how of it all. Ultimately the machine shop will tell me if I am crazy or not.
Originally Posted By Quenton
If you want to get any level of performance, use heads that have large intake valves. Converting from small to large will cost you as much as buying large valve castings. There's few good reasons to do this, and 1968 #15's are not one of them.
That helps tremendously. When I got the engine the guy passed on three sets of heads. #15's, #46's, and #50's. From my reasearch all were "junk" for what I wanted, but I definately wanted to compare the option of reworking them vs. scraping them.
Originally Posted By Quenton
If you are running power brakes, this can lead to some challenges.
manual disk brakes, with no intention of going with power.
Originally Posted By Quenton
Was that the explanation you were hoping for?
Yes, it helped alot. I have #16's on my car right now, I didnt want to swap them, but if the best option is big valves, then I will probably go that way unless I come across another set. I mainly wasnt sure if you could overcome the shortfall of smaller valves with different pistons, cam, combustion chambers, ect.