Anybody done this?Looks to me I'll have to do major trans crossmember mods for the trans mount.I know the 250 is a little longer,so I'll have to mount it as close to the firewall as possible.And mods to the radiator support.I'm most concerned about the trans crossmember.
I have just done a turbo 350 in a 63 c10. Had to completely remove the original bellhousing / motor mount cross member and fab a new trans mount( 1.5 x 1.5 square tubing) for the 350 trans mount. Took 3 hrs just to remove stock rivets and still had to cut old crossmember in half to get it out.
it's been i while but if i remember right we bought motor mounts from from ch***is engineering[?] and we added a small piece of 1/4 x2 along the back edge of the original ****** mount to bolt the 350's mount to. the radiator we moved to in front of the support to give it more room. this was on a '53 back in 1993 so i could be a little fuzzy on the details. i do remember i thought it was easy.
I did this in a 48 Fleetline. I used 70 chevy pick up motor mounts. I might have inverted them or switched sides, I can't remember. They just laid over the top of the frame, and I welded them in place. Made a trans cross-member, put in a 57 chevy rear ended and went down the road. I realize your car is a generation newer, but I had no radiator issues, but did have to go to electric fans. Hope this helps a little.
I'm putting 250 in my 54 with t5 behind it.. Made my own motor mounts, made my own trans mount.. Will have to cut the fire wall and make trans tunnel.. Posted using the Full Custom H.A.M.B. App! Using iPhone 6
I ended up just tearing in to it.Got the engine and trans into the engine bay,trans pan hits the crossmember,engine not far enough back.So I cut out the middle of the crossmember,now the engine goes back far enough.Now I have to fab a new section of crossmember and make a trans mount.Lucky I work at a metal fab shop.
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