351w swap
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
351w swap
will there be any majorsteps in converting my 84 to a 351w form a 302? i would specifically like to know about engine mounts, flywheel, and why headers for a 351 will fit my 4 gear but the ones for 302's can only be used w/ autos?
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
the swap is a drop in swap. you will need the proper flywheel for your 351w 28oz imbalance. all the accessory brackets from the 302 should bolt onto the 351w. of course the intake and distributor are different. not sure on the water pump but they could be the same. motor mounts are the same but look them over good. new ones are like 20 bucks and worth it if your stock ones are old.
as for the headers the 351w block is wider/taller then the 302 so with a manual the linkage may get in the way. are you running shorties or longtube headers?
as for the headers the 351w block is wider/taller then the 302 so with a manual the linkage may get in the way. are you running shorties or longtube headers?
Posting Guru
Joined: Sep 2002
Posts: 2,195
Likes: 1
From: San Antonio, Texas
I can't add much more than what is here, but I did it and it was simple, there is a difference on the alt/smog pump bracket, I had to use the one from my 83 Or it was all in my head.
I have bassani shorties and the y-pipe and I highly reccomend them, but to each his own.
Check my gallery under my rig.
I have bassani shorties and the y-pipe and I highly reccomend them, but to each his own.
Check my gallery under my rig.
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
longtubes are nice for torque gains but can have fit issues and they hang below the frame . i dont like that for an offroad rig that may see some hi center situations. shorties are nice, get the job done and fit well
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
its a 69 351 (oh yeah! big heads) that im rebuilding in auto tech. im gonna be using a carter carb on a HO intake (untill i can afford an aluminum one, im pinching pennys where i can, i actually did have a wiand but that was before i found out my 302 was trash) and a comp cam. the headers i was looking at are hooker competitions. they seem to be the only long tubes that i can find that fit a manual tranny (mine has a hydraulic clutch w/ external slave) anybody use a set of hookers? ( 
) i will also need to fab up an exhaust, will both pipes need to go over to the passenger side to go back? i would like to use an x pipe, or a crossover at the least. engine mounts are still good and my old 302 is an 80' so it should be a 28 oz.
) i will also need to fab up an exhaust, will both pipes need to go over to the passenger side to go back? i would like to use an x pipe, or a crossover at the least. engine mounts are still good and my old 302 is an 80' so it should be a 28 oz.
Senior User
Joined: Jun 2004
Posts: 439
Likes: 0
i use hooker comps on mine with an autotranny, i havent seen a goodway to run a pipe under the driver side yet. but would u realy want one that close to ur fuellines and pump? u could run true dual out right infront of the rear tire if u want it loud.
Trending Topics
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
naw actually i want the pipes to come out at angles at the back corners. what type of exhaust system finishes up yours?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
a single exhaust setup will produce better torque then a dual setup. its cheaper and less stuff to get damaged when wheeling. if you need that dual look then just have a single in dual out muffler and have the pipes ran out behind each tire.
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
well, i got the engine into the shop and mostly tore down(crank, rods and pistons are the only things not pulled) and so far it looks really promising, the intake side of those old heads are noticably bigger than the E0's off my 302, and while the cylinders do have a fair ridge at the top, there are no big scratches or grooves or anything. im not gonna be here tomarrow so monday i will finish the teardown and mic everything out and let it sit in the vat for a couple of days before i send it off to the machinist. it really looks like i got a well cared for engine, i'll know for sure when i see the bearings. and mr burns, you are correct about more torque if i just ran a good sized single exhaust, and i will keep it in the back of my mind, but for some reason i still want duels(must be my age) and it isn't so much to be loud (except for maybe when all four barrels open) but i want it to be noticable, so you can hear the slight lope of the cam, but mostly looking for a good sound.
also how much lift does it take to clear 35's?
also how much lift does it take to clear 35's?
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
what year motor did you get the 351w out of again? to clear 35's youll need 4"s on anything from 78-86. 6"s for 87+.
a single can sound just as good. i have a 50 series on mine with a choked up Y pipe an stock cats an it is great. anything more really and the dron going down the road would get old ya know. if you go duals take it to a good shop and expect to pay a good penny for quality work. also dont go bigger then 2.5" and make sure a crossover is put in (very important)
a single can sound just as good. i have a 50 series on mine with a choked up Y pipe an stock cats an it is great. anything more really and the dron going down the road would get old ya know. if you go duals take it to a good shop and expect to pay a good penny for quality work. also dont go bigger then 2.5" and make sure a crossover is put in (very important)
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
Originally Posted by Bronco308
If the heads on the 351 are noticibly larger than the heads on the 302, you might have a 351C; 351W and 302 heads are dimensionaly the same, I believe.
the 351w (yes, it is a windsor) came out of a 69 or 70 galaxie 500 the block is stamped as a 69. it is one of the pre74's that has bigger intake ports and valves