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Tha_Stepside
04-28-2007, 11:16 PM
So i have now just scrapped my idea for building my 300-6 and put it in my daily driver, now my choices are either a 351W or a 302, both are cheap to make power out of and they both sound bitchin when opened up, so what do you guys like about each engine? The 302 gets better gas mileage, and the 351 pulls from lower. Im running 35" tires an NP435 Tranny with an NP205 TC, its gonna be a daily driver in the week and a trail rig in the weekends, it will see mud now and then. What would better suit my needs, ohh and gas mileage plays a slight issue but not too much to make a decision.P.S. i live in Kamloops with a butt-load of hills to pull.

WagoneerXJ
04-28-2007, 11:31 PM
351 Windsor, no question. Both of my Mustangs have them swapped in. I like my power down low :)

Jroc
04-29-2007, 06:47 AM
do you still have your 300-6? i need one manifold bolt ( top of the dump pipe?)

godtool
04-29-2007, 08:28 AM
I heard you can put the heads of a 351 and the cam too into a 302 for lots of power. But maybe I'm mixed up. Also need to change the locate of dowel pins on the heads...?? Daily driver... gas is 112.5/l up here in 100 Mile yesterday, if $$ for fuel is not a concern go with the 351. I've heard though if you are running big tires you may get just the same mileage cruizin with the 351 as the 302 struggling and sucking fuel to turn those tires... but then you have 4:10's?

Go big.. and don't look back!

m j
04-29-2007, 01:33 PM
351w heads are not any good, step up to some aftermarket ones
the 351W uses 1/2 head bolts and the 302 uses 7/16 head bolts.
they make washers to do that swap
I doubt the cams on a 351w are any good as they never made a high performance version so once again the aftermarket is your only choice
the dowels are in the same place on all the small block fords IIRC they are a ring around 2 head bolt holes

Always broke
04-29-2007, 07:50 PM
In 1985 they had the 351w HO they make great power and are easy to find if you know where to look got one myself just sitting and waiting for my tow vehicle:dontknow:

godtool
04-30-2007, 06:38 AM
The 351 cam does not have more lift or duration then the 302 cam? I figured it might. Put it in the 302 for bit extra lift or duration?

ray
04-30-2007, 12:22 PM
351 winsor by far the m isnt bad but winsors planty good

4doorShorty
04-30-2007, 12:58 PM
you can get a windsor for the same amount as a 302, theres 50 extra cubes to start with (Ford 351s are actually 352cid) instead of paying the $$ to stroke it out to a 347 and have 5 less cubes. If you find a block that doesnt need boring, theres a crank out there made by eagle IIRC that on a stock bore strokes it out to 387cid (393crank) and uses the stock widnsor rods and 5.0L pistons. You can bore out some E7 (1987-96) 5.0L heads and use them on it, with a 5.0L HO cam and youll be doing pretty well especially since all of these things are plentiful to come by except the crank, so cost will stay down.

Tha_Stepside
04-30-2007, 04:52 PM
Yeah im definitely leaning toward the 351W, its gonna be bored out 0.030" aluminum 64cc Ford GT-40 Heads a custom cam and an RPM Air-Gap intake, im looking for between 350-400hp

Squishy
04-30-2007, 05:22 PM
ive always had 302's(5 of them), so i say a bone stock 302 from a 87+ 5.0l mustang(using the factory stand alone efi stuff), tonnes of torque, good on gas, more than enough power. in my truck i can punch it from an idle and it just goes till i shift

blacker_69
05-02-2007, 11:31 PM
ive run both, id say go big or go home. 460!

mark
05-13-2007, 12:29 AM
id say go with the 351w gas mileage isnt that much worse its fairly cheap to build with a stroker kit and its heavier duty than the 302. my two cents

brandonf250
05-13-2007, 08:18 PM
ive had both and im runnin the 5.0l now and its nothing too brag about go with the 5.8L

Tha_Stepside
05-14-2007, 12:21 AM
lol i might go even bigger, i found an industrial 400 BB in a 70' 1-ton at pick a part, 4.00" bore, 4.00" stroke. Theres even a few 460's kickin around there.

pistnbroke
05-14-2007, 12:31 AM
there is no substitute for cubic inches.[36]

Melvin
05-14-2007, 07:50 AM
I like my 302. I make more power than most big blocks at the rear tires.

mark
05-14-2007, 06:24 PM
the 400s are not that great. i would go 460 if your gonna go big block. my cousin gets way better fuel mileage with his 460 than a friend of mine who has a 400. they suck gas real bad.

4doorShorty
05-14-2007, 07:38 PM
400s are a good engine

m j
05-14-2007, 08:08 PM
stock 400s really suck other then the first year which I think was 1971
everything after that the compression is brutally low
I am building a high compression 400 for my truck
pistons from TMI and Aussie 302C heads for a true 10.5:1 compression

351s from ford other then 351C all have issues
the W have crappy heads, the M have no compression

mark
05-15-2007, 09:51 PM
most of the windsor heads did suck but the 69 - 70 heads were actually quite good i just built one with 69 heads and 11:1 compression. the Ms seemed to be reliable but as you said low compression. how were the heads on those anyhow?

Tha_Stepside
05-16-2007, 12:07 AM
this 400 isnt an M its actually part of the 429-460 family i believe, unless my ford manual is incorrect. It is the same block but used for industrial application and has a 2bbl carb.

4doorShorty
05-16-2007, 09:16 AM
I dont know what engine youre talking about, Ive never heard of another 400cid Ford engine other than the one the 351M is based off of. The 400 came first, then they designed a destroked version of it to 351cid. There were already two other ford 351s so they put an M behind it to distinguish. So the 351M came from the 400.

Tha_Stepside
05-16-2007, 09:56 AM
its not an M, i know that for sure, im pretty sure its an industrial version of the 429-460, its a really cool engine from what the book tells me. Lots of torque but cant rev worth a shit.

4doorShorty
05-16-2007, 07:51 PM
got pics?

Tha_Stepside
05-17-2007, 10:11 AM
next tyme im at pick a part ill post some.