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View Full Version : Big block motor mounts twosxe1 Nov 19th, 02, 08:13 AM Hi I have a factory 69 Z/28 RS to expensive to put 302 back in. So going to stick a 454 in it ? do the big block motor mounts bolt into the same holes in the frame as the small block mounts if not what do I need to do. Thanks J early Nov 19th, 02, 08:15 AM They will bolt right in. TJS69 Nov 19th, 02, 10:56 AM Buy the correct frame and motor mounts. The big block engine is offset. I believe you will want to change your transmission crossmember too. It may bolt right in as it is, but be prepared for many future problems. ------------------ 69 Camaro Z28 "clone" - 327 AT "461" camel back heads, edelbrock , hooker, ultradyne cam, stewart, TRW etc. Vintage Air (not yet installed) 700R4 TPI transmission jaw2 Nov 20th, 02, 12:28 PM just get the mounts for a bb.you can get them from ricks,you might have to drill 2 new holes for the cross member to bolt up.you should change the coil springs to a bb set.i did the same thing last winter puting a 509 in.no big deal.good luck jeff ------------------ 69z 509 merlin 600 hp/620 torque pro street impzilla Nov 20th, 02, 07:53 PM Please take these guys advice.... I wish I had been a Team Camaro member when I did my BB conversion. I did it with the small block mounts and its caused many a problem. No drive train mods my way (wrong way) but I wish it was right. One day I'll make it right. twosxe1 Nov 21st, 02, 07:36 AM <BLOCKQUOTE>quote:</font><HR>Originally posted by twosxe1: Hi I have a factory 69 Z/28 RS to expensive to put 302 back in. So going to stick a 454 in it ? do the big block motor mounts bolt into the same holes in the frame as the small block mounts if not what do I need to do. Thanks <HR></BLOCKQUOTE> Thanks this info cleared up my problem JWA Nov 22nd, 02, 02:16 AM Going big block is not your only option. If budget is a big issue go with the biggest small block you can afford and dress it up as a 302. I know of a certain black Z28 RS done this way and it is a very cool car http://www.camaros.net/forum/smile.gif By the the time you spend the money on the BBC to get all the required things to fit you can build a decent SBC. Of course this is just my opinion, do what you wanna do to be happy http://www.camaros.net/forum/smile.gif BBCs are cool http://www.camaros.net/forum/cool.gif What are you going to do about your heater core pipes? ------------------ Jeff 69 SSRS 396(roller 427 :D ) My Chevs (http://www.chevelles.com/showroom/rides.JPG) |