1NASTY69Z
Feb 20th, 08, 05:23 PM
I have a '69 Camaro that was a 6 cylinder,Im going with a 350 and a Tremec trans.Could some one tell me what frame mounts I need. I have a set of small block mounts but I think they are for a 307 or 327.The ones I need are also for the the 302?I see them advertised for 302 and 350. Whats the difference in the mounts height? Thanks in advance if someone replys.:)
William
Feb 20th, 08, 05:54 PM
Chevy had well publicized motor mount failures in the '60s resulting in one of the largest recalls ever. The quick-fix was a retaining cable the looped around the LH upper control arm shaft and fastened to the exhaust manifold. The long-term solution was a re-designed mount. That took time for design, testing and tooling. The re-designed mount was first used on Camaros deemed likely to need them most: 302, 350 and all big blocks for 1969. The new mount was narrower and thicker than the 67-68 mount so new frame brackets were designed for it. 302/350 is one design, big-blocks are another. Therein lies a problem as the old style mount will loosely fit the new '69 brackets. The engine will be positioned too low and can move about causing driveline vibration, clutch chatter and so on. The '69 307 and 327 continued to use the 67-68 style mount/bracket and that causes the confusion you have encountered.
All you need to do is use matching parts. If you find the older style frame brackets use the older style mounts. 2nd design frame brackets, later mounts. No matter which you use the mount should be a tight fit on the bracket; a 67-68 mount on a 2nd design '69 bracket has about 3/8" gap.