Hello,
What are the major differances between the 351w HO's and the standard 351w's?? Are they reliable...overall good engines? Are parts interchangable? Are there any similar parts found on clevelands? Ive got a 69 mustang fastback that im hoping to eventually get about 400hp or so with a lot of torque. Its got a 351c in it right now married up to a world class t5. Its got headers and an edelbrock carb but thats about it. I just got it...drove it from CA to ND so its pretty sound. open to any ideas/suggestions as long as your competent thanks
putz

 

The cleveland heads will not directly work on a 351w but with some minor modifications they will, also requires a special intake manifold:

http://www.oemfordparts.com/faq/tipsandspecs.htm

The only difference between a Ho and non Ho 351w is minor differences in cam and one has a 4bbl intake/carb the other is 2bbl intake/carb. If you plan to build up a motor anyway then either will work. The only block to maybe look out for would be one that has F4TE stamped under the castin number, this is a roller compatible block found on 94, or so, to 96 trucks. If you wanna run stock heads then look for gt-40 or gt-40p and the 69-75 351w heads.

Personally I would keep the cleveland motor, and rebuild it, unless there is something seriously wrong with it. Does it (cleveland motor) have 2v or 4v heads? later

 

Its got 2v heads and a 4bbl carb. Its a solid engine. Needs a throwout bearing but its pretty much cherry other than that. I was thinking of maybe strokin it, putting a better electronic ignition, and differant heads for starters. Im pretty intreged by the jegs/kaase 351w heads so that'd be the biggest reason for switching to a windsor. How do the heads above compare to the j/k heads? Id probably put 3" exhaust on it as well. I saw somewhere an article on a 69 mustang boss 302 that actually had a 351c in it and it was making 10 sec quarters. It was red, had total control suspension, and other suspension parts from a firebird or camero or something. Ive been looking for that feature article for months since then but havn't found it...so if you know where its at please let me know!! Anyway, this cleveland has 2v heads...would 4v make a huge differance? Thanks for the insite

 

Yes the 4v would make a difference. Here is a link you can compare the cleveland 2v or 4v against many different aftermarket and stock heads.

http://home.isoa.net/~mharrisj/fordhead.html

Cleveland motors weight more, but they are also known for performance. I noticed the 4v cleveland flow very close to the afr 165's in the link above, that shows there is some potential. I wouldn't rule out having the 2v professionally ported either.

As an example:

In the book "How to build max performance ford v-8s on a budget"

They took a cleveland w/t 2v heads added:

flat top pistons to achieve 9.25:1 compression ratio

arp bolts to stock rods

stock oil pump

a johns mustangs & classics custom flat tappet camshaft
.................................110 lobe seperation
..................................560/.585 lift int/exh
..................................duration 232/236 int/exh

edelbrock dual plane intake and 750 holley

msd ignition.


The dyno sheet looked like this:

2500......................142 hp...............373.8 tq
3500......................225 hp...............393.8 tq
4500......................319 hp...............418.0 tq
5000......................360 hp...............420.6 tq peak
6000......................405 hp peak.......387.2 tq



the torque is nice and flat, keep in mind the compression is reasonable, the heads are stock, and this was done some time ago, the cam technology now, is better. Port your heads, slap a custom or newer off the shelf camshaft in, raise the compression a point, get the stall converter and tranny setup right along with a decent gear in the rear and that thing should be very fun, not to mention you said you would like to stroke it, that would be icing on the cake. Have fun and good luck


BTW I am usually all things trucks but I saw a black and gold (striped) 66 fastback the other day and I think I found a car that has got my attention. I have noticed they are not cheap, in any form (minor rust to rough), then again what is. I tried to convince my wife that we should get one, paint it with the stock gold and black colors that came on my eddie bauer truck (black with gold stripes) and get similar wheels, then we could have matching vehicles, sounds like a plan huh?

Let me know what you do, I would enjoy seeing your pix and progress, good luck, later

 

wow thanks for all that info!!!

 

I will get some pics up sometime, I don't have them with me here on this machine. I was curious how much stroking it to a ~396 would affect the torque/hp curves? Would it just lower each? I am assuming everything in the demo above plus the 396 stroke? Thanks in advance!

 

I would say your torque should improve 25lb ft across the board up to a certain point, it could peak even more. Hard to say just guessing, your hp would more than likely stay the same, if not improve slightly. Thats being conservative. later