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Re: 73 Satellite / Roadrunner BB or small block K-frame
[Re: Boise Chall]
#876231
12/11/10 06:26 PM
12/11/10 06:26 PM
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Joined: Aug 2004
Posts: 8,526 Tenn.
jrwoodjoe
master
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master
Joined: Aug 2004
Posts: 8,526
Tenn.
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My first engine swap ever was dropping a 383 six pack into a 73 RR that was a 318 car. Took all summer because (as a kid) I thought it would just bolt in. After some research, I bought (IIRC) 400 Motor Mounts for 73 RR and I had to change the oil pan because the 383 sump hit the K-member and would keep the back of the engine from dropping down correctly. I went to a JY that had HUGE STACKS of OIl Pans. I spent several hours going through the oil pans until I found the one that would had the sump further back than mine. Don't know what it came from it was in the stack. Once I put the oil pan on, everything lined up fine. I do not know what the 383 engine and trans originally came out of but I pulled them from a 66 Fury a guy had "rodded". I don't recall having any issues getting the transmission to work, however the tail shaft was longer on the big block trans and I had to get a shorter driveshaft which I found in a wrecked big block RR in a local JY at the time. Car ran and drove great w/ no issues.
65 Barracuda 70 Challenger
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Re: 73 Satellite / Roadrunner BB or small block K-frame
[Re: DaytonaTurbo]
#876235
12/12/10 02:28 PM
12/12/10 02:28 PM
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Joined: Feb 2004
Posts: 7,197 Harrisburg, Pa.
screamindriver
master
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master
Joined: Feb 2004
Posts: 7,197
Harrisburg, Pa.
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Quote:
The k-frames are physically the same pieces, the difference is where the motor mount perches are welded onto the k-frame. My car came with the 440 in the small block k-frame with original type 440 mounts. It fit in but I have since changed to the schumacher conversion mounts. When I first got the car, the 440 sat too high in the front and too far forward. The conversion mount dropped the motor down about 1" and moved it back about 1". I now have more fan-rad clearance and it got rid of a pinion angle mis-match which was causing a vibration at speed. It fit with the mis-matched stock stuff but I now have more clearance for aftermarket intakes/air cleaner and my el-cheapo summit headers fit great.
....And the whole trouble and confusion begins with the fact that the big block WILL just sit right in there tricking someone into thinking it's a done deal...They should have spread the mounts from BB to SB to avoid the confusion...
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Re: 73 Satellite / Roadrunner BB or small block K-frame
[Re: Runnin74]
#876236
12/12/10 05:34 PM
12/12/10 05:34 PM
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Joined: Jul 2003
Posts: 6,343 SE PA.
QuickBpBp
master
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master
Joined: Jul 2003
Posts: 6,343
SE PA.
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Quote:
Looks to me like the big block and small block k-frames are different. The small block mounts are set further forward and the left one is slightly more forward than the right mount. See the photo - compares the above big block k-frame pics to pics of my small block k-frame.
Great pics showing EXACTLY what I said as far as them being straight VS staggered.....You can physically set the motor in but nothing lines up you can see how crooked it would be as my tailshaft was pointing towards the rear shock....Manifolds make it look like it could fit but put headers and a trans behind it and you'll see how incorrect it is. I will check on my car how much I trimmed but I don't think trhe pics showed have enough clearance on the top part....Too cold and wet to look out in the garage today....
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Re: 73 Satellite / Roadrunner BB or small block K-frame
[Re: QuickBpBp]
#876237
12/12/10 06:06 PM
12/12/10 06:06 PM
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Joined: Aug 2004
Posts: 8,526 Tenn.
jrwoodjoe
master
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master
Joined: Aug 2004
Posts: 8,526
Tenn.
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Wish I had been able to access info. like this when I did my car. Maybe, it wouldn't have took all summer. I know that I was able to get it to work but perhaps the alignment was off w/o me knowing. I do not recall anything being terribly out of line but there is obviously a difference between the 2 K-members as shown in the pics. Joe
65 Barracuda 70 Challenger
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Re: 73 Satellite / Roadrunner BB or small block K-frame
[Re: jrwoodjoe]
#876238
12/12/10 10:32 PM
12/12/10 10:32 PM
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Joined: Jan 2003
Posts: 1,633 Jacksonville, NC
RonP
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,633
Jacksonville, NC
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Thanks Guys Now I know for sure it is a BB K-member like my dad said, but I have no idea what mounts to use or how they go on the engine. ANy help would be appreciated. Seems that the last three cars I owned have used motor plates.
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