I am considering using a 500 in our modified roadster being built for Bonneville. I need it turn at least 6500 rpm. I have a line on a '76 engine, and I have also seen a '70 on ebay, but it would be a long drive to pick it up. Any thoughts on whether a '76 would work well, or would the '70 heads be better? Acceleration is not as important as WOT RPM, as we have a couple of miles to get up to speed. Any thoughts?
To get that rpm stock heads will fall short... before spending money and time on stock heads check out aftermarket heads... MTS has theres. and Potter automotive has some bigger ones with a big intake to go with them...Both aftermarket heads should get you what you want....Another thing , you were looking at a 1970 - 500 , the 1970 500 has the strongest crank and the casting number ends in 094...
Automobile(s): 1977 Coupe (blue), 1977 Coupe (yellow), 1977 Coupe (green)
Re: High RPM
Someone had a streamliner on the salt this year and I think they had two 500's under the skin. They broke the record for that class, but I don't know if they backed it up the next day. The run was on UTUBE. If you find this info, you may find out what they used to achieve this run.