I will be building a 347 with 10.5-1 compression for the maverick. It will be mainly a strip car. I have been looking at heads and the rhs 215cc cast heads seem like the best deal to me. I was wondering if anyone has used them or rhs heads for that matter. Thanks for any help
Pro Topline cam out when the economy was booming. They were made in new zealand but had a lot of issues with machine work. Things just didnt fit too good. Their chevy heads had more issues than fords but the problems were not with the casting but the angles in which everything was machined. They filed banko and were looking for a company to buy them. RHS took it over and I have no idea if they fixed any of the machining issues but the castings are the same. If your buying them based on the flow numbers then dont buy them. Lets just say you will never reach their "Flow numbers" even with porting and polishing. Other than the misleading of the flow numbers, its a great head with lots of material for porting and playing around with port shapes, I would buy them again.
