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Old 08-21-2014, 07:10 PM   #1
bigred59
 
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Question 69-70 front grills

I like the 69-70 body style the best. I like the 69 grill with the quad lights and I like the 70 because of the availability of the 351 cleveland engine. I would like to combine the two. Can you install the 69 grill on the 70 or would it be better to install the cleveland in the 69 or just get better heads.
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Old 08-21-2014, 08:48 PM   #2
LynnBob Mustang
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The two grill's will not interchange. You can put any motor in the car you want to.
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Old 08-21-2014, 10:43 PM   #3
barnett468
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hello;

yeah, the body is 90%5 of the cars value. keep it orig. buy the car you want then put in the engine you want. windsors and clevelands are both 351 ci. the clevelands need oiling probs fixed. you can make a windsor fast or put 2 barrel cleveland heads and make a "clevor".
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Old 08-22-2014, 09:41 AM   #4
69mach1377
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I had a clevor for years, but that was when aluminum head choices were few and expensive. It is now a nostalgic choice.
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Old 08-22-2014, 05:50 PM   #5
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Thanks for the grill answer. So the 2 barrel cleveland heads are a bolt on? Can you use a 4 barrel with those heads?
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Old 08-22-2014, 06:06 PM   #6
barnett468
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351 Cleveland heads to a 351 Windsor block

Looking for B&A Ford?? They are gone. However - Brand new news. Edelbrock is now casting a new intake manifold just for this swap! Yes! A brand new intake for you Clevor guys. Available in two variants, part number 7129 for a 302 block and 7183 for the 351w block. We are currently stocking the 302 intake for $319.95 and should have the 351 variant available soon (as of 1/1/08, check for current pricing).

More updated info - Was sent an email referring to Price Motorsport in Indiana who manufactures various intake adapters and other parts for those interested in doing this swap.



...the 351c block does have its shortcomings. A poorly designed oiling system combined with the thinwall casting leave some to be desired for heavy duty use. As for 351 Windsors - Their heads are nothing special really, simply a slightly larger version of your generic 289/302 heads. Smaller ports and valves don't flow anywhere near the way Clevelands do. The blocks, however, are well-designed, have a decent oiling system and are far less prone to failure. Not only are they stronger, but they are cheap and easy to find. Here's some specs to compare the two blocks:

Engine . . Bore . . Stroke . . Main pin od . . Rod pin od . . Rod Length . . .Firing Order

351 W . . 4.00 . . . 3.50 . . . . 3.00 . . . . . . 2.311 . . . . . . 5.954 . . . . 1-3-7-2-6-5-4-8
351 C . . .4.00 . . . 3.50 . . . . 2.7492 . . . . .2.311 . . . . . . 5.780 . . . . 1-3-7-2-6-5-4-8


There's a few basic areas that need to be modified to accomplish this swap.. I'll go thru each one:

Intake manifold:

You'll be needing a special intake manifold. Obviously, for those of you building a 302-based motor, you could use a Boss 302 intake. Of course as time passes, these get harder to find and more expensive when you do. For many years there was a company called Bush Performance who was casting new intakes, both dual and single plane versions. They eventually became B&A Ford and continued production, however they are now gone as well but their intakes can sometimes be seen on ebay. Luckily, in late 2007 Edelbrock stepped up to the plate and is now casting brand new intakes in their Performer RPM/Air Gap series, calling them the "E-Boss 302" and "E-Boss 351", fitting either the 302 or 351w block respectively. As of this update, they are only available in a dual-plenum configuration, however are based on Edelbrock's "Air-Gap" design to increase the effective RPM range from 1500 to 6500 RPM. Oh, and in case you're wondering what's so special over a regular cleveland intake - Notice the water outlet - cleveland motors have a dry intake.


Intake Gaskets

You have a few options. Boss 302 intake gaskets have been known to work for the guys running 4v heads. FOr 2v heads you can take 2v 351c gaskets, and cut out water passages. Edelbrock claims that with their new intake manifolds, the answer is to run their intake gasket number 7265, but does not specify what head it's meant to work with, other than they say the port size is 1.52" x 2.16". The 7265 is their standard 351c intake gasket but it appears they are stamping out coolant passage holes that would just be left unused on a standard cleveland installation. If anyone's used a set of these for either a clevor or cleveland motor and can confirm any part of this, please let me know and i'll update this accordingly.


Pistons:

Special pistons are also needed for correct compression and valve clearances. There are two types; flattops and popups, depending on the compression that you want to get. They are available from KB Performance Pistons, reachable at 800-648-7970 (Note: NOT "Keith Black" pistons, "KB" pistons www.kb-silvolite.com). They enable you to use the stock Windsor rod and work with either 2v or 4v heads.

Table of compression ratios:

. . . . . . . . . . KB110 Piston flat-top . . KB117 Piston pop-up

Head Volume . . . Compression Ratio . . . Compression Ratio
62 . . . . . . . . . . . . . 11:1 . . . . . . . . . . . .12.7:1
66 . . . . . . . . . . . . . 10.6:1 . . . . . . . . . . 12.1:1
76 . . . . . . . . . . . . . 9.5:1 . . . . . . . . . . . 10.6:1

Heads:

A couple of modifications need to be performed to the heads themselves for coolant passages.

[A] Coolant passages need to be plugged.
[B] 0.80 inch hole must be drilled on each head. Use the intake gasket as a template for these holes.
[C] Remove these alignment pegs.
[D] Use freeze plugs to block these end holes, if the heads have them.

Head gasket and block:

Head gaskets designed specifically for swapping Cleveland heads onto the Windsor block are available from Ford's SVO department at 313-337-1536. There are 3 holes that you must drill in the Windsor block, however, to match up with the Cleveland water passages. Use the head gasket as a template to mark these holes (3 on each side), then remove the gasket and carefully drill them out.

Alternatively, you should be able to run Boss 302 head gaskets. Any notes on this from experience? Let me know and I'll update this page.

Click here for the diagram of where to drill the block.

That's about all that you will need to do this head swap. It's fairly straight-forward and doesn't require machine work besides drilling a few holes.You'll soon be making tons of power with your very own 351 Clevor!!


link with photos

http://www.themustangshop.com/clevor.cfm

.

Last edited by barnett468; 08-22-2014 at 06:27 PM.
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Old 08-23-2014, 08:29 AM   #7
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C 2V heads don't flow much compared to modern day aluminum heads if you are looking for more power, and they weigh a ton. I had exhaust valves break twice in my setup, so my advice would be to use the best ones you can find if you go this route.
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Old 08-23-2014, 11:07 AM   #8
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Thanks for all the great information.
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Old 08-23-2014, 10:31 PM   #9
barnett468
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hello;

yes you are looking at around $200.00 for a set of use cleveland heads then around $600.00 fro new valves, springs and a valve job.

the orig cleveland valves are 2 piece. do NOT use them. manly makes valves for those. as i mentioned, you can install slightly bigger valves to increase flow. you can get maybe 400 hp out of them.

if you use a high perf cam you need screw in rocker studs.
.

Last edited by barnett468; 08-23-2014 at 10:33 PM.
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Old 08-23-2014, 10:31 PM
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