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Posting Guru
Joined: Apr 2009
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From: Illernois
will a...
Will a 1985 c6 trans that came from a 351 fit onto a 1984 straight six engine?
Anyone have a good site explaining all the bolt patterns of the c6 trans for the engines they will fit?
I know they have their own groups, like a small block will fit a small block....
Is a straight six considered a small block or something else?
Thanks!!
Anyone have a good site explaining all the bolt patterns of the c6 trans for the engines they will fit?
I know they have their own groups, like a small block will fit a small block....
Is a straight six considered a small block or something else?
Thanks!!
pedant
Joined: Jan 2008
Posts: 23,576
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From: EXTREME southwest CT
From the wiki....
"Later Windsor pattern;
Note: this is commonly called the Ford Small-block V8 pattern, though it is used in some "big block"-sized V8's as well as some V6's and I6's.
* 200 I6 1978-1983 only, partial (4 of 6 bolts) pattern.
* 250 I6
* 255 V8
* 289 V8 - (made after August 3, 1964) - had 6 bolts holding bellhousing to block
* 302 V8 including Boss 302
* 302 Cleveland (Australia)
* 351 Cleveland V8 (not the 351 Cleveland M-block engine)
* 351 Boss
* 351 Cobra Jet
* 351 Windsor V8
* 400 Cleveland M-block V8 aka 400FMX (certain 1973 casting numbers D1AE and D3AE, mated to the FMX transmission)
* 3.8/3.9/4.2L Canadian Essex 90° V6 (RWD only)
* 240 I6
* 300 I6
* 4.6L Modular V8 (first two casting runs, numbers F1AE and F2VE)
* 5.0L V8
* 5.8L V8"
"Later Windsor pattern;
Note: this is commonly called the Ford Small-block V8 pattern, though it is used in some "big block"-sized V8's as well as some V6's and I6's.
* 200 I6 1978-1983 only, partial (4 of 6 bolts) pattern.
* 250 I6
* 255 V8
* 289 V8 - (made after August 3, 1964) - had 6 bolts holding bellhousing to block
* 302 V8 including Boss 302
* 302 Cleveland (Australia)
* 351 Cleveland V8 (not the 351 Cleveland M-block engine)
* 351 Boss
* 351 Cobra Jet
* 351 Windsor V8
* 400 Cleveland M-block V8 aka 400FMX (certain 1973 casting numbers D1AE and D3AE, mated to the FMX transmission)
* 3.8/3.9/4.2L Canadian Essex 90° V6 (RWD only)
* 240 I6
* 300 I6
* 4.6L Modular V8 (first two casting runs, numbers F1AE and F2VE)
* 5.0L V8
* 5.8L V8"
Posting Guru
Joined: Oct 2010
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From: Missouri
Senior User
Joined: May 2010
Posts: 350
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From: Spartanburg, SC
So just to be clear... (mainly because I'm slow) if I were to unbolt my I-6, I could drop in a 351W with different motor mounts and it would work, right? I have a 4 speed tranny.
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pedant
Joined: Jan 2008
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From: EXTREME southwest CT
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Post Fiend
Joined: Nov 2005
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From: Charles Town, W bygod Va
I believe you need the frame perches that connect the motor mounts to the frame crossmember from a donor truck
Elder User
Joined: Jan 2011
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From: Rockport, IN
There is a lot to take into consideration when doing an engine swap. You will have to change the towers. That is what the engine mounts mount to. The radiator from the six cylinder may also have to be changed, but I am not sure on that. Also, if your 4 speed tranny is a manual tranny, you need to make sure the 351W has a pilot bearing and the right flywheel. You will also run into wiring issues because regardless of whether the vehicle ignition is controlled by a computer or the Duraspark system, the systems are different for the I6 and the V8.