Well iam not tha nova 70ss but I talked to axe main distribitor and he says if there is a new motor it will be released in feburary as reguards to the black magic he did not have any but will try to get some to us. Yall may already know this but iwill say any way the mamba has the same bore and stroke as tha magic and the pistion and sleeve from mamba will work if that helps any