now i have searched but it didnt give me a definitive answer.
i have a worked 4age bigport bluetop head, theres a mint 4afe block on trademe, should i get it and put them together? i read about the pistons being different? how different, will it effect performance? and the flywheel only has 6bolts so id have to use a 4afe one, or maybe a 3au one? anyone put a 4age head on a 4afe block before?