Hi, I have recently got my 53 cranked up to find it is extrmely noisy in the lower end...I have a 58 model 261 that is a runner..I had read some posts last year on swapping these two but cant seem to find all I need. I Iknow I can use the adapter plate to bolt my old style water pump to the 261 and use the 3/8 belt with the '58 261 harmonic balancer which has a 1/2 belt, will just sit further down in the groove. I will aslo switch over my electronic dizzy and alternator, new fuel pump(I hope) . My main questions are of the motor to bellhousing and the front motor mount. Will thi s bolt to my existing bellhousing and clutch? thanks, hans