1966L6

Ok whats the pros and cons of these two motors?
427 stroker and a 347 stroker? In your opinion which one is better?

codeman94

427...still a small black....way more cubes....keeps the wieght way down, but shoots power way up...however...its really expensive for some reasion, and its a bit bigger of a motor....so if you want to put it in your '66....its a 351W block....shock towers are probably gonna have to go....a 347 is a cheaper, smaller, and weighs less. will drop right into your '66 and wont hurt your wallet nearly as much....302 block.....my brother inlaw has a 427 stroker in his 64 fairlane...its fast.

1966L6

I thought a 351 would fit in a 66 you just have to use special headers.

codeman94

in my '65....I dont think I even have room for headers...and I have a 289..when i get some, I'll probably need to modify my shocktowers.

65stangman

Opinion only.....Headman headers $80 summit or Jegs fit great and will almost fall into place. For what I gather you want and can afford why not build a respectable 289, spend time on the heads and cam combo. Determine your rpm range you want power in and build it from there. After that save your dollars and upgrade to a set of 4.56 gears and an OD trans to get your road speed back. This should give you the feel and pick up you are looking for. This will be more dependable as well. Carbed NA engines that make one HP per cubic inch are usually stroked, heavy on compression or turned fairly high rpm's. RPMs = more money spent to stay together. Gears and trans might be a better bet. If I remember right one full gear set reduction (3.0 to 4.11) is the same as adding 100 ft tq as far as feel of the car.

mgreene

351 based strokers are put into '65-66 cars all the time with no shock tower mods. You do have to use headers, but this is a very common swap.

mgreene

Here's some header swap info:

http://www.mustangsandmore.com/ubb/D...ngineSwap.html

LMan

351 will fit fine. People swap them in all the time.

HOSS429

just good luck finding one

codeman94

Thanks for the info!

Jan Boggs

The 351 swap into a '65-66 Mustang is very easy, even a 351-C. I've done both swaps and you don't need any aftermarket parts if you want to do it on the cheap. I put a '69 351 W in my '66 GT in about 1978(factory dual exhaust, you do need to use the 289 rear exit manifolds) using all the cars original parts. The factory H-pipe needs a little "persuasion", but it's still easy, no heating required. In 1974, I swapped a nearly new '73 351-C engine from a wrecked Torino GT into another '66 GT I owned at the time. A friend had just swapped a Cleveland into his '64 Falcon, and we were surprised how easy it was, so we did my Mustang. I used the Torino exhaust manifolds, and they fit just fine, even cleared the original 289 clutch cross-shaft. The only issue with the 351-C is spark plug access is tight, it's easiest to pull the valve covers off to swap plugs. I did need a bit larger radiator for the 351-C, but that's it for changes. Of course, both cars would have performed better with headers, but as I was a cash strapped mechanic in those days, I had to make do with what I had...Not many folks mess with Clevelands these days but just as an FYI, the 4 barrell carb engines in a lot of '73-'74 Torinos were known as "CJ 351's", and had a hydraulic cam with the same timing specs as the 428CJ, and had 4 bolt main blocks.With a set of early (70-71) Cleveland closed chamber heads to raise compression, these can be made to run fairly well without spending a ton of money. Sorry for rambling on, but maybe some of this info will be of use.

Jan

HOSS429

if ican put a 351 in a pinto .. you can put one in any mustang .. jan .the corvette is gone .. were you the one ?

1966L6

Does anyone here have a 408 or 427 stroker in their stang?

Jan Boggs

Nah, Hoss, I missed that Corvette. I've about decided those cars are out of my price range these days, should have kept the ones I had....Guess I'll have to be content with what I have. I've got a spare 351W engine, may have to build one of the stroker engines out of it like what's being discussed in this thread, should wake my little '66 right up...

Jan

LMan

Id prefer a 347 myself, but thats just me.

usmcrebel

66
i've got a guy in Fla that can build you a 427 and put down ungodly numbers....some of the stuff he's done include 429 road racer 357 77 (mustang) "pinto" 557 bb fox, right now he's building well rebuilding a 77 mustang with a 289 10.2:1 with a 7500-8000rpm redline. ill talk to him tonight if you want me to to find out what he could build you, and get some price for you.

1966L6

Well i found a early 70's 351w that can be built for $150.
Is there a certain 351w you have to use to build a 427 stroker or will the early 351's work fine.

usmcrebel

personally i get timid when thinking of how thin those walls will be. 70's would be a good block, but the god of the 351w's is the 69 block.

1966L6

I think you only bore the block .030 for a 427. Am i wrong?

usmcrebel

i just looked it up and i didnt know you could get it with the .030, i've only heard of ppl using the .060 over. so yes it can come with a .030, oh and heres a tech article for you
http://www.mustangandfords.com/techa...est/index.html