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Thread: 20r in a 77 corolla questions

  1. #1
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    20r in a 77 corolla questions

    Ok i just got a 20r block that has been bored 20 over and has domed pistons. A head with bigger valves and new valve springs and a cam'd head. I want to know what i would have to do to put this in my 77 corolla liftback. I'm trying to shoot for about 200whp. Any help would be cool.
    thanks.
    Preston

  2. #2
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    no one?

  3. #3
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    I'll take a stab at it. Fabrication of new motor mounts to start. From there, it would just be a wiring issue. I don't think the length of the block would cause any issues. If in doubt, measure both blocks.

  4. #4
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    Mounts I'm not worried about. Now the height at where the engine will sit, oil pan, transmission and driveline are a different stories.

  5. #5
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    I'm sure it's been done before, start searching around online, but unless you find a full writeup on the swap, it's going to have to be trail and error I'm sorry to say. Lots of taking the motor out and putting it back in, Cheking how every thing fits, yaddA yadda yadda...
    What motor do you have in there right now anyways?
    I also have to ask, is this a blue liftback? Did you just get it recently from a guy in anacortes?

  6. #6
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    lots of mods and fabrication will be needed. why don't you just use the existing 2tc engine and do a combo 2t/3t set up with sidedrafts but this is just me.

  7. #7
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    The motor will be very tight in that engine compartment, and will add a fair bit of weight to the front end. Corollas were never designed for R series engines, only T, K, and A series...so you have a bit of a project in front of you.

    Keep in mind, an engine with the modifications you described will produce about 100RWHP, with a Weber down draft on the stock manifold and a header. Dual 40mm PHH's or DCOE's might make 125RWHP. 200RWHP is quite a lofty goal.

  8. #8
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    Agreed, the 2 tc or 3tc are awesome motors , and as far as I have seen, have far more potential, and aftermarket support than the 20r. Also the parts are cheaper.

  9. #9
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    No its not a blue one, its orange and I got from a guy in snohomish. Well the 2tc that's in it has bad oil burning and blow back issues. And I wouldn't be using stock intake and I already got a weber carb it came with the engine. I got this 20r basically for free with a lot of stufff already done to it, so why not use it you know.

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