351m to 429
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Junior User
Joined: Jan 2003
Posts: 55
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351m to 429
my 351m needs heads reworked. the block is fairly fresh. it's got a c-6 behind it. i know i can redo my heads for a few 100 dollars.
i might have another option though. a friend has a 68 thunderbird with a 429 in it. it's suppose to be in really good shape. i was thinking of swaping the motor and tranny.
can i make this swap without a lot engineering?
i don't know about the different motor families, even though i've read about them a dozon times. i think either a 428 or the 429 should swap.
thanks for your help!
i might have another option though. a friend has a 68 thunderbird with a 429 in it. it's suppose to be in really good shape. i was thinking of swaping the motor and tranny.
can i make this swap without a lot engineering?
i don't know about the different motor families, even though i've read about them a dozon times. i think either a 428 or the 429 should swap.
thanks for your help!
New User
Joined: Feb 2003
Posts: 1
Likes: 0
351m to 429
351m is a small block with a bigblock bolt pattern. i've heard of people doing this swap and am going to attempt it my self. your c-6 is a big block tranny in case you didn't know. i know a few companies make bolt in mounts for the swap. try seacing through google.com.
i am happy with my 351 for now and am going to keep it in my truck while i build the 429. my exhaust system turns some heads. if your looking for an awesome sounding system go with straight pipes,h pipe and 18 inch long x 3 and a half inch diameter tips. it earned the name import killer. write back with results on the search.
good luck
bryan mcconnaha
1978 ford short box
351- very loud and fast
Upper Case edited out by admin.
i am happy with my 351 for now and am going to keep it in my truck while i build the 429. my exhaust system turns some heads. if your looking for an awesome sounding system go with straight pipes,h pipe and 18 inch long x 3 and a half inch diameter tips. it earned the name import killer. write back with results on the search.
good luck
bryan mcconnaha
1978 ford short box
351- very loud and fast
Upper Case edited out by admin.
351m to 429
I have done the very thing you are asking about in my 78 150 2wd the engine and tranny are from a 68 t-bird not that tough
Tuned
Joined: Feb 2003
Posts: 355
Likes: 0
From: Oregon
351m to 429
Piece of cake.
The 351M, while a good motor, is basically a dog. You can build the crap out of it and it might keep up with a stock 429/460. As far as fuel economy, you're not gonna get any mileage out of either one, so I'd drop the 429 in and forget about wasting money on the M. Just my .02.
BTW, the 428 is the biggest member of the "FE" engine family and is getting very hard to find. The 429 is a "385" engine and is almost identical to a 460.
The 351M, while a good motor, is basically a dog. You can build the crap out of it and it might keep up with a stock 429/460. As far as fuel economy, you're not gonna get any mileage out of either one, so I'd drop the 429 in and forget about wasting money on the M. Just my .02.
BTW, the 428 is the biggest member of the "FE" engine family and is getting very hard to find. The 429 is a "385" engine and is almost identical to a 460.
