"HammerheadFistpunch" (hammerheadfistpunch)
12/21/2018 at 13:27 • Filed to: None
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"HammerheadFistpunch" (hammerheadfistpunch)
12/21/2018 at 13:27 • Filed to: None | 2
| 21 |
I mean, I knew that a 702 cubic inch V12 with 4 3 cylinder heads wasn’t going to be small but holy crap that thing is a monster.
Spamfeller Loves Nazi Clicks
> HammerheadFistpunch
12/21/2018 at 13:32 |
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I NEED THIS AND A 1984 BUICK BUICK ELECTRA IMMEDIATELY.
lone_liberal
> HammerheadFistpunch
12/21/2018 at 13:33 |
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So you’re saying that putting it in to a Corvair might be a bit of a challenge?
RamblinRover Luxury-Yacht
> HammerheadFistpunch
12/21/2018 at 13:33 |
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Have I mentioned that I’ve gamed out how it would be possible to increase the displacement of one of these to much more than 702? Because I have.
Sure, in the process the temp gradient over the length would get worse, but it was so good stock it ought not to be fatal.
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HammerheadFistpunch
> lone_liberal
12/21/2018 at 13:35 |
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mightcould be
Roundbadge
> HammerheadFistpunch
12/21/2018 at 13:35 |
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I just learned about this engine like 2 months ago. I find it fascinating.
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HammerheadFistpunch
> RamblinRover Luxury-Yacht
12/21/2018 at 13:35 |
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Im assuming bore and not stroke? Whats the new displacement come to? And why do you need more than 702 cubes?
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HammerheadFistpunch
> Roundbadge
12/21/2018 at 13:36 |
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Its the very best of big hammer engineering.
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RamblinRover Luxury-Yacht
> HammerheadFistpunch
12/21/2018 at 13:49 |
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The 702 was basically a double 351 v6. 4.56" bore, 3.58" stroke. The 478 on the same block was 5.13"/3.86". Now, it’s extremely possible that the wall-casting thickness on the 702 blocks was not thick enough to clear an extra .56 " in diameter/ .28 " reduced wall without having to wet-sleeve, but the odds are better than they would be with a passenger car engine. If one was being extremely moderate with ones parts, a boring out to 4.87" bore (402) should be possible almost without question, which with stock stroke crank would give you an 804.
More bore is better than more stroke for this engine anyway, because more power will be limited by breathing and it already is running slower than it needs to. If you can bring the bore up to 5.13", you have an 885 and an absurdly oversquare engine.
If you go to a bigger crank and shoot the moon on bore, you’re up to 478x2 = 956, and with a little offset grind or a big wet liner, you end up way over 1000ci.
Yowen - not necessarily not spaghetti and meatballs
> Spamfeller Loves Nazi Clicks
12/21/2018 at 13:50 |
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With two engines it’ll be a Buick Buick for sure.
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HammerheadFistpunch
> RamblinRover Luxury-Yacht
12/21/2018 at 13:54 |
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mmm, 1000 cubic inch engine. 300 hp...at idle.
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RamblinRover Luxury-Yacht
> HammerheadFistpunch
12/21/2018 at 13:56 |
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How many torques?
All of them.
benjrblant
> RamblinRover Luxury-Yacht
12/21/2018 at 13:56 |
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ADabOfOppo; Gone Plaid (Instructables Can Be Confusable)
> benjrblant
12/21/2018 at 14:00 |
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You called?
shop-teacher
> HammerheadFistpunch
12/21/2018 at 14:00 |
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I kinda want to fill the bed of a squarebody with this engine. It would be gloriously pointless and amazing.
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RamblinRover Luxury-Yacht
> shop-teacher
12/21/2018 at 14:03 |
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You know there’s a company that specializes in finding and rebuilding them, right?
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shop-teacher
> RamblinRover Luxury-Yacht
12/21/2018 at 14:41 |
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I did not!
M.T. Blake
> HammerheadFistpunch
12/21/2018 at 15:29 |
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This is the engine that came in fire trucks and other heavy duty stuff correct?
I-have-to-many-sports-cars-according-to-my-wife
> HammerheadFistpunch
12/21/2018 at 16:15 |
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I would like to put that engine in my miata... that is all.
jimz
> M.T. Blake
12/21/2018 at 17:52 |
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depends on the era, the Detroit Diesel two stroke V6s and V8s were incredibly popular in fire trucks for quite some time. These would have been an option for customers who wanted gas engines.
also, there was a diesel version of the big V6 this monster was based on, called the Toro-Flow. not very well regarded.
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Spamfeller Loves Nazi Clicks
> Yowen - not necessarily not spaghetti and meatballs
12/21/2018 at 20:24 |
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It’ll be the most Buick th at ever Buicked a Buick!
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jimz
> lone_liberal
12/22/2018 at 08:21 |
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It weighs as much as a corvair