351 Cleaveland conversions

Discussion in 'Technical' started by Al Martin, Oct 21, 2008.

  1. TSMAVERICK

    TSMAVERICK New Member

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    well I guess your right but if you think about what you said and what I said you would probably think the two go hand & hand with each other! high cylinder pressure thin walls spell trouble weather it over heating or crack its the same! TROUBLE! I'M A MASTER CERFITIED MACHINEST AND I HAVE PERSONALY SEEN ALOT OF JUNK CLEVELAND BLOCK WITH 2 BOLT OR 4 BOLT MAINS WITH CYLINEDERS CRACKED THE ONLY WAY WE COULD MAKE THEM LAST IS TO PUT IN BLOCK CEMENT AND WITH THIS HERE COMES YOUR HEAT PROBLEMS.ITS ALL TROUBLE KNOW MATTER HOW YOU SPELL IT.
     
  2. ratio411

    ratio411 Member

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    I guess I would agree with you as long as the block is beyond .030".
    Would you agree with that?
    Personally, I would never buy a used Cleveland block with ANY overbore.
    So, I agree with your forecast of trouble, if the block used has been bored before you get ahold of it.:Handshake
     
  3. maverickdvm

    maverickdvm Member

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    I love my Cleveland in my Maverick. It is a stock 2 barrel motor with an aluminum intake and roller rockers. I have put tons of passes on it over the last few years with no issues and it will go 12.60s all day. Fastest it has went is 12.52 and it is very streetable, full exhaust with manifolds, no headers. It hates anything higher than regular octane so it doesn't even get expensive gas, it will slow right down.
     
  4. ratio411

    ratio411 Member

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    Sounds great!
    Do you have any pics of the engine compartment?
    Do you have a shave?
     
  5. rotorr22

    rotorr22 Member

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    Here's one.
     

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  6. ratio411

    ratio411 Member

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    Man, it always blows me away how roomy it is in there with a tower shave!
    Here is my 351c... No shave. Had to pull the engine almost out to get the Moroso valve covers off! Couldn't even dream of getting to the plugs with the covers on, engine in car.
    351C.JPG
     
  7. jbbossmav

    jbbossmav Member

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    351c headers

    hi, ive seen the tubular automotive cross under headers.
    i have a new pair of hooker super comp swap headers that are made to fit a 4v 351c into a 67-70 mustang. dont remember the # off the top of my head, but does anyone know if they will fit the maverick? my shock towers have been trimmed.
     
  8. ratio411

    ratio411 Member

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    67-70 Stangs have huge engine bays compared to a Maverick.
    If the headers are not listed to fit 65-66 Stangs, they don't have a chance in a Maverick IMO. Our engine bays are the same width as a 65-66 Stang. In length, the same Stangs have slightly longer engine bays, radiator to firewall, so the fitment is not always gauranteed for 65-66 Stang headers, but it close. If there is a problem with the 65-66 parts, it usually deals with firewall clearance. Or in the case with Tri-Ys, steering linkage. But I am getting off subject.

    IMO, no, those headers don't have a chance. But if you can get them free, or cheap, it might not hurt to try. If they work, I am sure there are many folks here that would love to hear about it. The Cleveland swap is a popular one.
     
  9. PaulS

    PaulS Member extrordiare

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    I compared my 73 Maverick engine bay to my 66 Mustang compartment and the Mustang is definately wider. (between the shock towers). With the 351W in the Mustang I have three plus inches on both sides in the Mustang. I don't have that much room in the Maverick with the 302 in it.....
     
  10. ratio411

    ratio411 Member

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    Where are you measuring from?
    The tops of the towers are further apart on the Stangs, but
    down low, where it counts, you just about can't tell them apart.
    Also, I will point out that it is possible that your Maverick
    towers have sagged. My towers were sagged in a couple
    inches when I did my swap.
    The tower braces were hard to get on and I used a
    portapower to get them back into place. I gained more room
    than I would have believed if I hadn't seen it myself.

    Check the pics for clearance around the plugs/exhaust... I
    was refering to header fitment. (WOW! That is "poke your eye out red"!)
    Southern slang
    [​IMG]
    [​IMG]
     
    Last edited: Oct 31, 2008
  11. Al Martin

    Al Martin Member

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    I know for a fact that on the framerails just behind the radiator, is a inch difference between the two cars. Like 411 said at the towers is where It counts. I couldnt get a good measurement, on both cars with motors in them.

    For what its worth. At the radiator support, a 64-66 Mustang is 32"wide.
    And 72 maverick is 31 inches. Dont know if there is any taper in the frame rails thet would effect the frame rail width though.

    I measured here since it was easy. If anyone has one minus motor measure your rails at the firewall.That will tell us if the rails are straight and not tapered.
    Let us know.
    Regards.
    Al
     
  12. Al Martin

    Al Martin Member

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    Paul,
    Is that one of the Speedway Motors radiators in your mustang?
    Thanks.
    Al
     
  13. paxtond

    paxtond Member

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    I get 26.5" inside rail to inside of rail at the firewall and in front of the strut crossmember (about where the rad cradle sits).
     
  14. PaulS

    PaulS Member extrordiare

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    Al,
    That picture is from Ratio411 - not from me. My mustang is up on blocks with the running gear out of it.
     
  15. Al Martin

    Al Martin Member

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    That was the outside-outside measurement I was refering paxtond. Reason I used the outside is because im planning Mustang 2 suspension. Then I could compare kits for different cars to the mavericks.
    Regards.
    Al
     

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