Clevelor 302 Build
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Clevelor 302 Build
Ok i tryed to ask this yesterday but no one answered me so ill try one more time.
I have a mid 80's 302 thats bored 0.40 over it has D80E heads on it w\oversized
valves in it. its got 6000 miles on it. the pistons are cast. now what i want to do is i have a set of D1AE 2V heads ported with 2.19 In. & 1.71 Exh. which are both 4V valves i left the intake ports as close to stock as i could for low-end.
counterbored all for hardened seats. and bored valve pockets 0.25 less than the bore for seats, now i am going to need to order new pistons that are cut for the canted valves on the D1AE 2V heads they are open chamber.
can any one tell me what set of pistons i will need to order to keep compession
at 10:to 1 or 10.5 to 1 and can i run a 302 intake with spacers to match the ports on the heads ? and yes i know about the holes to drill ,and the ones to plug. im just not sure what pistons i need. hopefully someone that knows about this will tell me the real deal. thanks dave
I have a mid 80's 302 thats bored 0.40 over it has D80E heads on it w\oversized
valves in it. its got 6000 miles on it. the pistons are cast. now what i want to do is i have a set of D1AE 2V heads ported with 2.19 In. & 1.71 Exh. which are both 4V valves i left the intake ports as close to stock as i could for low-end.
counterbored all for hardened seats. and bored valve pockets 0.25 less than the bore for seats, now i am going to need to order new pistons that are cut for the canted valves on the D1AE 2V heads they are open chamber.
can any one tell me what set of pistons i will need to order to keep compession
at 10:to 1 or 10.5 to 1 and can i run a 302 intake with spacers to match the ports on the heads ? and yes i know about the holes to drill ,and the ones to plug. im just not sure what pistons i need. hopefully someone that knows about this will tell me the real deal. thanks dave
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
Ford used to make pistons just for this swap, but I don't know if they're still available. I seem to recall coming across something about this, I'll dig back through my books and see what I can find.
In the meantime, perhaps someone who does know will speak up. It seems it's getting harder and harder to find someone who still works with this swap as there are so many good aftermarket heads available these days for the 302/351.
Do you already have an intake manifold?
ON EDIT: Maybe Boss 302 pistons are what you need. Look here. (Although these are std.)
In the meantime, perhaps someone who does know will speak up. It seems it's getting harder and harder to find someone who still works with this swap as there are so many good aftermarket heads available these days for the 302/351.
Do you already have an intake manifold?
ON EDIT: Maybe Boss 302 pistons are what you need. Look here. (Although these are std.)
Last edited by TigerDan; Feb 23, 2006 at 08:47 PM.
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I have a intake thats efi for 94 302 was hoping to use it with spacers or do i need a 351 intake? thanks yes a boss 302 is what im trying to clone. but if i use 351 pistons
the pin is in not the same place so my compression will drop. i want to be around 10:to 1 i have all my own valve grinding mach.& seat grinder and k.o. lee seat counterbore setup so thats why i want to use the cleveland heads thanks dave
the pin is in not the same place so my compression will drop. i want to be around 10:to 1 i have all my own valve grinding mach.& seat grinder and k.o. lee seat counterbore setup so thats why i want to use the cleveland heads thanks dave
Postmaster
Joined: Jul 2003
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From: iowa
I would also try to find a set of 302 boss pistons, but being a 351c owner, i would say you do not need the cleveland style psiton if the valve lift and .050 duration are moderate. If i remember rightly, with .029 deck clearence and standard head gasket and .560 max lift on 256 duration i had .220 clearence.
With open chamber heads it will be hard to obtain a 10:1 compression ratio. DO NOT rely on factory numbers for anything, measure everything to be sure. My closed chamber 351 is currently 10.03, my cumbustion chamber is about 65cc, I have the daoe 4bbl heads.
as for intake adaptors, price motorsports has them. I will have to find the website.
IMHO, use aftermarket windsor heads!
With open chamber heads it will be hard to obtain a 10:1 compression ratio. DO NOT rely on factory numbers for anything, measure everything to be sure. My closed chamber 351 is currently 10.03, my cumbustion chamber is about 65cc, I have the daoe 4bbl heads.
as for intake adaptors, price motorsports has them. I will have to find the website.
IMHO, use aftermarket windsor heads!
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From: iowa
New User
Joined: May 2005
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From: Windsor, CA
The Boss 302 used the same length connecting rod as a 289 (5.155'). All other 302's used a connecting rod 5.09" long (.065' shorter).
Putting a Boss piston on a regular 302 rod will put the piston .065" down from the deck at TDC. This will greatly lower the compression ratio AND cause detonation problems due to lack of quench area.
In other words, Boss 302 pistons must be used with Boss 302 rods or 289 connecting rods, not ordinary 302 rods.
Putting a Boss piston on a regular 302 rod will put the piston .065" down from the deck at TDC. This will greatly lower the compression ratio AND cause detonation problems due to lack of quench area.
In other words, Boss 302 pistons must be used with Boss 302 rods or 289 connecting rods, not ordinary 302 rods.
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
I had forgotton that monoman, good piece of info there. And of course 289 rods aren't as beefy as Boss 302 rods.
BTW- howdy, neighbor!
BTW- howdy, neighbor!
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Found this on another forum not sure how accurate it is
also found this link looks informative
http://www.jason.fletcher.net/tech/c...leveland2v.htm
DOZZ-6009-A ENGINE SHORTBLOCK ASSEMBLY
D1ZZ-6010-B BLOCK -4 BOLT MAINS
C9ZZ-6049-D CYL. HEAD-R.H.-1969 2.19 VALVES
DOZZ-6049-B CYL. HEAD-L.H.-1969 2.19 VALVES
DOZZ-6049-A CYL HEAD R&L.H.-1970 W/O VALVES
D1ZZ-6051-B CYL HEAD GASKET -REINTZ
C9ZZ-6065-A CYL HEAD BOLT
D0ZZ-6108-A PISTON-STD-RED SIZE
DOZZ-6108-B PISTON-STD-BLUE SIZE
C9ZZ-6135-E PISTON PIN
C9ZZ-6200-B CONNECTING ROD
C3OZ-6211-M CON ROD BEARING STD.
C9AZ-6212-B CON ROD NUT
C9ZZ-6214-B CON ROD BOLT
DOZZ-6250-A CAMSHAFT- MECHANICAL
D0ZZ-6303-A CRANKSHAFT FORGED- NOT-X- DRILLED ('69 IS 'X' DRILLED-PLUG)
C9ZZ-6310-A CRANKSHAFT OIL SLINGER
C9ZZ-6316-B CRANKSHAFT DAMPNER-1969
DOZZ-6316-A CRANKSHAFT DAMPNER -1970
C9ZZ-6375-B 164 TOOTH FLYWHEEL FOR 10 1/4" CLUTCH
C9ZZ-6345-A BOLTS M.B. CAPS 2&4 TO WINDAGE TRAY 9/16" HEAD HT.
DOZZ-6345-A BOLTS M.B. CAPS 2&4 TO WINDAGE TRAY -3/4" HEAD HT.
43007-S2 BOLTS M.B. CAPS 2-3-4
C2OZ-6345-A BOLTS M.B. CAPS 1-3-5
DOZZ-6500-A TAPPETS -MECHANICAL- (50 INCH RADIUS FOOT)
DOZZ-6505-A EXHAUST VALVE 1.71" 5.05" LONG STD.
C9ZZ-6507-A INTAKE VALVE (69) 2.23" 5.22" LONG STD
DOZZ-6507-A INTAKE VALVE (70) 2.19" 5,23" LONG STD.
DOZZ-6513-A VALVE SPRING 2-PIECE
C9ZZ-6514-A VALVE SPRING RETAINER
C9ZZ-6A527-A ROCKER ARM STUD 7/16"
C9ZZ-6A528-A ROCKER ARM FULCRUM
C8SZ-6A529-A ROCKER STUD NUT
C9ZZ-6A529-A ROCKER STUD JAM NUT
C9ZZ-61536-A VALVE SPRING SEAT
C9ZZ-6564-A ROCKER ARM
C9ZZ-6A564-A GUIDE PLATE- PUSH ROD
C9ZZ-6565-A PUSH ROD -HARDENED 7.595"
C9ZZ6582-C ROCKER COVER -BRUSHED ALUM. R & L.
DOOZ-6584-A ROCKER COVER GASKET
C9ZZ-6600-B OIL PUMP ENGINE
DOZZ-6675-A OIL PAN ASSEMBLY
C9ZZ-6687-B WINDAGE TRAY
C9ZZ-9424-C INTAKE MANIFOLD-4V ALUM HIGH RISE
D1ZZ-12127-A DISTRIBUTOR- DUAL PIONT W/ VAC & MACH. ADVANCE
D1ZZ-6010-B BLOCK -4 BOLT MAINS
C9ZZ-6049-D CYL. HEAD-R.H.-1969 2.19 VALVES
DOZZ-6049-B CYL. HEAD-L.H.-1969 2.19 VALVES
DOZZ-6049-A CYL HEAD R&L.H.-1970 W/O VALVES
D1ZZ-6051-B CYL HEAD GASKET -REINTZ
C9ZZ-6065-A CYL HEAD BOLT
D0ZZ-6108-A PISTON-STD-RED SIZE
DOZZ-6108-B PISTON-STD-BLUE SIZE
C9ZZ-6135-E PISTON PIN
C9ZZ-6200-B CONNECTING ROD
C3OZ-6211-M CON ROD BEARING STD.
C9AZ-6212-B CON ROD NUT
C9ZZ-6214-B CON ROD BOLT
DOZZ-6250-A CAMSHAFT- MECHANICAL
D0ZZ-6303-A CRANKSHAFT FORGED- NOT-X- DRILLED ('69 IS 'X' DRILLED-PLUG)
C9ZZ-6310-A CRANKSHAFT OIL SLINGER
C9ZZ-6316-B CRANKSHAFT DAMPNER-1969
DOZZ-6316-A CRANKSHAFT DAMPNER -1970
C9ZZ-6375-B 164 TOOTH FLYWHEEL FOR 10 1/4" CLUTCH
C9ZZ-6345-A BOLTS M.B. CAPS 2&4 TO WINDAGE TRAY 9/16" HEAD HT.
DOZZ-6345-A BOLTS M.B. CAPS 2&4 TO WINDAGE TRAY -3/4" HEAD HT.
43007-S2 BOLTS M.B. CAPS 2-3-4
C2OZ-6345-A BOLTS M.B. CAPS 1-3-5
DOZZ-6500-A TAPPETS -MECHANICAL- (50 INCH RADIUS FOOT)
DOZZ-6505-A EXHAUST VALVE 1.71" 5.05" LONG STD.
C9ZZ-6507-A INTAKE VALVE (69) 2.23" 5.22" LONG STD
DOZZ-6507-A INTAKE VALVE (70) 2.19" 5,23" LONG STD.
DOZZ-6513-A VALVE SPRING 2-PIECE
C9ZZ-6514-A VALVE SPRING RETAINER
C9ZZ-6A527-A ROCKER ARM STUD 7/16"
C9ZZ-6A528-A ROCKER ARM FULCRUM
C8SZ-6A529-A ROCKER STUD NUT
C9ZZ-6A529-A ROCKER STUD JAM NUT
C9ZZ-61536-A VALVE SPRING SEAT
C9ZZ-6564-A ROCKER ARM
C9ZZ-6A564-A GUIDE PLATE- PUSH ROD
C9ZZ-6565-A PUSH ROD -HARDENED 7.595"
C9ZZ6582-C ROCKER COVER -BRUSHED ALUM. R & L.
DOOZ-6584-A ROCKER COVER GASKET
C9ZZ-6600-B OIL PUMP ENGINE
DOZZ-6675-A OIL PAN ASSEMBLY
C9ZZ-6687-B WINDAGE TRAY
C9ZZ-9424-C INTAKE MANIFOLD-4V ALUM HIGH RISE
D1ZZ-12127-A DISTRIBUTOR- DUAL PIONT W/ VAC & MACH. ADVANCE
http://www.jason.fletcher.net/tech/c...leveland2v.htm
Last edited by Matt95L; Feb 24, 2006 at 04:22 AM.
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Thread Starter
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Junior User
Joined: Feb 2006
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Clevelor
Thank-you guys for all the info on this matter.
looks like i need to get boss 302 pop up pistons and boss rods or 289 rods,
i did not see in the articles about what pushrods they used also is the 351 rockers like the 302 that you just torque down or what? i wrote down all the part numbers for the things that i will need i still think this is a worth while
project since i need to buy pistons for the 302 i bought they are only cast and only having 6000 miles on it.
i will just hone it and get the forged boss 302 pistons hope they make them in
0.40 over. thanks again. dave
looks like i need to get boss 302 pop up pistons and boss rods or 289 rods,
i did not see in the articles about what pushrods they used also is the 351 rockers like the 302 that you just torque down or what? i wrote down all the part numbers for the things that i will need i still think this is a worth while
project since i need to buy pistons for the 302 i bought they are only cast and only having 6000 miles on it.
i will just hone it and get the forged boss 302 pistons hope they make them in
0.40 over. thanks again. dave
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
You saw the info in that article about the intake manifold, Dave? That's why I was asking, because a stock intake won't fit, there isn't room for adaptor plates, and a 351 manifold is too wide, whether it's for a C or a W. A stock or aftermarket Boss 302 manifold won't work either since it's made for the huge ports of the 4bbl heads and you'd not only get some major reversion but I think you'd get some places where the port mismatch is so bad that you can actually see into the edge of the port, Talk about a vacuum leak!
Another consideration for you might be Aussie heads, which have the smaller ports and valves along with the smaller quench combustion chambers.
For that matter, I believe this was actually a production engine Down Under and so might be a good source of parts and info.
Another consideration for you might be Aussie heads, which have the smaller ports and valves along with the smaller quench combustion chambers.
For that matter, I believe this was actually a production engine Down Under and so might be a good source of parts and info.
Last edited by TigerDan; Feb 24, 2006 at 07:09 PM.
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