C6 Trans fitment

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C6 Trans fitment

Dabbler
Hi Guys - Pondering swapping my tired 351W HO with a 351C I have an opportunity to buy.
Anyone know if my C6 trans will bolt up to the 351C?

Thanks,
Grant
Grant. 1984 Shortbox 4x4 XLT. 5.8L 4V HO, C6, 9โ€ rear. Alberta,Canada
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Re: C6 Trans fitment

85pig
Yes - the 351C uses the same bell housing bolt pattern and same motor mounts as the 302/351W.  

 
1985 F150 4X4 300 I6 4-Speed
1970 Torino Cobra "Twister Special" 429CJ 4-Speed
1965 Mercury Comet Caliente Convertible 331 5-Speed
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Re: C6 Trans fitment

ArdWrknTrk
Administrator
In reply to this post by Dabbler
Hi Grant,
The 351C's I've dealt with (in Pantera's) all had the regular small block bellhousing pattern.

I can't speak about crank flange depth in relation to the block, but it should certainly bolt up just fine.  ๐Ÿ‘

What are your plans for the 4V Windsor?
 Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.
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Re: C6 Trans fitment

viven44
In reply to this post by Dabbler
Just curious what you mean by โ€œtiredโ€?

How are the vitals? Oil pressure when cold and hot ? Compression? Blow by? Oil consumption?

If vitals are looking good, but you are just wanting more performance, I was curious if the 351C that you have sourced would be the answer.
Vivek

- BB 2WD - 1984 F350 RWD 460/C6
- 1978 Bronco with a 460 from an 86 Bullnose/C6
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Re: C6 Trans fitment

ArdWrknTrk
Administrator
Their oiling system and main bearings mean that they rev higher and run longer with less drag.
 Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.
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Re: C6 Trans fitment

Dabbler
Thanks guys - sorry for the late reply, have been working out of town.
My initial thought was to rebuild the C as time, ok mostly money, allowed and then magic presto do the swap. In the end, given the other changes needed (and mostly the fact the 351 HO was what the truck came with), it would be easier/less expensive/better to just rebuild what I have over the winter and enjoy the summer crusinโ€™. But if anyone wants a totally original non-blown C to rebuild I believe he still has it for sale for $800. Cdn. (Thatโ€™s like $16.50 USD)๐Ÿ˜‚๐Ÿ˜‚๐Ÿ˜‚
Grant. 1984 Shortbox 4x4 XLT. 5.8L 4V HO, C6, 9โ€ rear. Alberta,Canada
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Re: C6 Trans fitment

ArdWrknTrk
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Pickups got the C in Oz.
Plus their own I-6

A new member recently said that the antipodes never got the larger 385 series engines, and they can no longer import them either.
(They have just bought one that was previously imported)
 Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.