clevor engine
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Senior User
Joined: Mar 2000
Posts: 115
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From: Norway
clevor engine
I've tried to ask in another thread, but really didn't get the right answer.Can anyone answer the following questions?
Has anyone here actually built a Clevor engine? Is the difference in torque and power worth the effort?
Can I use my 1976 351W-2v block as the basis to build one?
I have a Volare front in my 55 F-100. Will a Clevor fit? Is it too wide? Will the headers hit the steering box? ETC
I'd like to know as much as possible before I decide to or fro since I buy on E-bay and the cost of shipping to Norway is really something else!
Has anyone here actually built a Clevor engine? Is the difference in torque and power worth the effort?
Can I use my 1976 351W-2v block as the basis to build one?
I have a Volare front in my 55 F-100. Will a Clevor fit? Is it too wide? Will the headers hit the steering box? ETC
I'd like to know as much as possible before I decide to or fro since I buy on E-bay and the cost of shipping to Norway is really something else!
Postmaster
Joined: Jun 2004
Posts: 4,190
Likes: 2
From: Riverside, So Cal
Airwick -
I run a Clevo in my 56. I did not build it. I have some books and did some research on it before I decided on that motor.
1. The Cleveland, even the 2V heads with 9:1 stock pistons, outruns a stock Windsor. The Cleveland was built to race. Rousch is famous for his massaging of them. The smaller ported 2V heads are great street torquers. The 4V heads are nearly impossible to find now.
2. No. The Windsor and Cleveland families will not swap blocks. Same bore and stroke, but different journal size, firing order, cams, heads, etc.
3. Yes, a Clevo will easily fit in the cavernous engine bay of an Effie. I can stand in my engine bay between the 351C and inner fenders, feet on the ground.
4. Some folks offset the center of the engine 1-2" to the passenger side to get more clearance at the steering box. Not familiar enough with the Volare setup to be more helpful there.
5. Whether the headers clear depends on what header you pick. Sanderson makes some nice ones that seems to clear things well. Cast, stock exhaust manifolds will also clear most stuff well.
6. Running an electric fan will allow a lot more positioning room for the engine when you mock it up.
My two cents...
I run a Clevo in my 56. I did not build it. I have some books and did some research on it before I decided on that motor.
1. The Cleveland, even the 2V heads with 9:1 stock pistons, outruns a stock Windsor. The Cleveland was built to race. Rousch is famous for his massaging of them. The smaller ported 2V heads are great street torquers. The 4V heads are nearly impossible to find now.
2. No. The Windsor and Cleveland families will not swap blocks. Same bore and stroke, but different journal size, firing order, cams, heads, etc.
3. Yes, a Clevo will easily fit in the cavernous engine bay of an Effie. I can stand in my engine bay between the 351C and inner fenders, feet on the ground.
4. Some folks offset the center of the engine 1-2" to the passenger side to get more clearance at the steering box. Not familiar enough with the Volare setup to be more helpful there.
5. Whether the headers clear depends on what header you pick. Sanderson makes some nice ones that seems to clear things well. Cast, stock exhaust manifolds will also clear most stuff well.
6. Running an electric fan will allow a lot more positioning room for the engine when you mock it up.
My two cents...
Lead Driver
Joined: Oct 1999
Posts: 6,777
Likes: 553
From: Kalispell, MT
Doesn't sound like we know. A Clevor is a windsor block with cleveland heads. Bigger valves and better breathing. I've heard of it but never messed with it. Read thru the engine forums and do a search - it should come up. It not try a google search.
Cargo Master
Joined: Jan 2005
Posts: 2,497
Likes: 5
From: Tucson AZ
one of the reasons for the Clevor configuration had to do with friction in the roatating assembly. the swept area of the cleveland main/rod bearings is a lot more than the windsor and reducing friction without losing the flow capabilities of the cleveland heads was the aim.
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Senior User
Joined: Mar 2000
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From: Norway
I've done the Google search and that's why I wanted to know if anyone here has any experience with a Windsor block and Cleveland 2v heads.It doesn't seem to be too much of a problem fixing the heads. Just closing off one water hole and making a new one,a new intake manifold (or spacers for the old one) and a new set of pistons. But my 351 Windsor fits rather close to the steering box in the Volare setup and I wonder how the larger heads will fit.And of course if it's worth all the trouble and expense to remake my engine.
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From my reading I understand it to be easier to just by a set of aftermarket aluminum heads. With the cleveland heads you have to 1) Find a set of them 2) have them rebuild if they need it 3) modifiy the engine to accept the heads 4) by a special intake. All this or 1) Buy a set of aftermarket heads that bolt on and make the same #'s. Just my 2 cents.
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Senior User
Joined: Mar 2000
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From: Norway
I've given up the whole idea.Firstly I have found out that my block from 1976 has "inferior" metall in its casting. I should have had a block from 1969 or from 1987 and up that could stand a lot more.
Secondly if I really wanted extra power it would be easier to make a 427 stoker out of the 351W. Everything would just bolt on.But given my 76 block,I'll just have to go stock.
Secondly if I really wanted extra power it would be easier to make a 427 stoker out of the 351W. Everything would just bolt on.But given my 76 block,I'll just have to go stock.
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Senior User
Joined: Mar 2000
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From: Norway
Talked with a company here in Norway called "Pony Parts" that spesialize in Mustangs. They said that the Ford blocks produced between 1971 thru to 1986 didn't have enough nickel and therefore were weaker than the first 351W blocks(69-70) and the later blocks 87 and up.