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366 BBC

 
88ss408
I love my Chevy Chevette!
Posts: 22
Joined: 12/07
Posted: 10/24/08 11:37 AM

i can get a 366 tall deck motor from a cravel truck it's a low miles motor and run's great.
and i can get this cheap!
so i am wondering if the tall deck motors are different form the standard blocks are they good performers ?
i am not looking to make a monster out of this i know its a small bore long stroke motor and i am not looking to spin it to 9000 rpm.
but is there anything stoping me from puting a intake ,carb ,headers ,cam and get a deasent pavement pounder ?

thanks  

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JW454
I have an SS396 tatoo
Posts: 345
Joined: 07/08
Posted: 10/24/08 12:56 PM

The accessories for the tall deck engine are quite expensive to justify the small increase in power. The stock crank is only 3.750 like that of a 427. The tall deck accomidates 3 compression ring pistons, hence the need for more deck height. I'd look for a 454 and do it the right way.  JW.  

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shootnrats
My first time was in a Chevy
Posts: 177
Joined: 08/08
Posted: 10/24/08 01:08 PM

We use the 366 on pump engines to water the fields, they will run @ 2000 rpm 24/7 and not miss a beat. I put one in a 1970 pick up just because it was a running engine and the farm truck engine had a large hole in the block from a rod. I didnt see any gain over the 350.  

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mpayne
I mow my lawn and find Chevys
Posts: 1117
Joined: 10/07
Posted: 10/24/08 01:49 PM

Thanks for the info, are tall deck motors common? I haven't seen any every done in this magazine.  

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JW454
I have an SS396 tatoo
Posts: 345
Joined: 07/08
Posted: 10/24/08 02:00 PM

The GM perf parts 572 is a 10.200 "tall deck" As for "stockers", most were used in medium duty trucks.  

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GibTG
I mow my lawn and find Chevys
Posts: 1985
Joined: 10/03
Posted: 10/24/08 02:28 PM

Tall deck engines are common, not exactly desirable but common...

Most were 366's and 427's with an occasional 454. In the case of a performance engine the useable stroke can outpace the available bore size so that there is no earth-shattering potential in them.  
~Gibs

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88ss408
I love my Chevy Chevette!
Posts: 22
Joined: 12/07
Posted: 10/26/08 02:08 PM

so are there any problem's with the tall deck blocks ?
i know that the 366 is known for not liking to rev to high is that because of the heavy pistons ?
are the heads restrictif ? is the commpression to low ?
i dont really want to have to compleatly rebuild the motor with custom pistons or anything like that if i have to do that i will just keep my little sbc and build that  

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GibTG
I mow my lawn and find Chevys
Posts: 1985
Joined: 10/03
Posted: 10/26/08 04:48 PM

All of the problems you listed describe any smog-era engine GM made.  
~Gibs

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JW454
I have an SS396 tatoo
Posts: 345
Joined: 07/08
Posted: 10/26/08 09:11 PM

As much as I am an advocate of the BBC, I would say to stay with your smallblock. There is little improvement to be made for all the effort you would have into the project.  JW.  

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SMOKESHOW
I mow my lawn and find Chevys
Posts: 1001
Joined: 09/08
Posted: 10/27/08 10:39 AM

I don't think you will get the performance for dollar value you are looking for.  These engines were designed for low RPM low geared commercial work trucks.  The aftermarket support for them is almost non existent as compared to the standard deck BBC or SBC for that matter.  You can probably find a running SBC to use as a base and get a lot more bang for your buck.  What are you looking to accomplish with this engine?  

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mpayne
I mow my lawn and find Chevys
Posts: 1117
Joined: 10/07
Posted: 10/27/08 03:35 PM

Looks like a tall block is just a bad idea, thanks for the help and 88ss408 I hope all these guys helped you out.  

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