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Chevy bowtie engine not sure what i have

  
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Chevy bowtie engine not sure what i have

 
scottz28 scottz28
New User | Posts: 3 | Joined: 05/13
Posted: 05/10/13
04:08 PM

Great site . I am new here .I just purchased a chevy bowtie engine casting # 366286  it has bodix alminum heads #s 1480, elelbrock super victor intake, holly 1050 carb,roller cam [ not sure what one ] bored 30 0ver with a stroker kit.This engine was never ran . I dont even know what size this engine is. I was hopeing someone could tell me what i have  and aprox horsepower . I bought engine cause the price was right . The owner passed away thats why i dont have much info on it .  

68scott385 68scott385
Guru | Posts: 1990 | Joined: 10/09
Posted: 05/10/13
06:24 PM

366286 350 82 Bowtie aluminum 4-bolt siamesed
This is what my reference material says about the casting number of your block.

At this point, without pulling at least one head and measuring things like bore, stroke, chamber volume, and deck height, there is no way to tell exactly what you have. How much of a stroker kit?  Cranks come in various sizes and stroke longer than stock is stroked. It'd be nice to know what size valves you have too.  
68scott385 68scott385 68scott385

Dave632 Dave632
Addict | Posts: 2218 | Joined: 07/08
Posted: 05/10/13
07:25 PM

Icon Quote68scott385:
366286 350 82 Bowtie aluminum 4-bolt siamesed
This is what my reference material says about the casting number of your block.

At this point, without pulling at least one head and measuring things like bore, stroke, chamber volume, and deck height, there is no way to tell exactly what you have. How much of a stroker kit?  Cranks come in various sizes and stroke longer than stock is stroked. It'd be nice to know what size valves you have too.


+1 As mentioned you will have to pull it apart to determine what you have. This was probably going to be an all out high rpm race motor with a carb that big.
I ran those 1050s on some of my smaller Big Blocks, 468-488, and they were big enough for them. If you are planning to street drive this you may have to lower compression, change the cam and put a smaller carb/intake on it. The heads may also be to large for a street motor. An aluminum bowtie block is a nice block as are those heads. If that is a full roller with a stroker crank you may be looking at over 500 hp at the flywheel. This would be at a pretty high rpm say 5500-6500 since this motor sounds like a pretty strong race motor.
It all depends on what is actually inside. If you are going drag racing you may have scored a real winner there. Laugh  
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scottz28 scottz28
New User | Posts: 3 | Joined: 05/13
Posted: 05/11/13
01:30 AM

It was spose to go in a tubbed trans am . I would say your right on the money with your diagnosis . There is a spec sheet somewere but they  never found it yet .Rumor has it it has over 600hp but no way to know for sure . I guess i will have to detune it for a street car . Thanks again for your input .I paid $ 2500.00 [ ps i have a 1979 z28 4 sp ]  

Dave632 Dave632
Addict | Posts: 2218 | Joined: 07/08
Posted: 05/11/13
04:24 AM

I would say that build would have cost in the 10 thousand dollar range. The block alone is in the 4K range.
600 is not out of the question if the build is right. You will have a very lightweight motor there. Over a 100 lbs less than a cast iron SB. I ran an all aluminum BB in my Beretta race car and the weight without driver was 2040.
Your biggest concern is going to be compression ratio. You may be looking at very high compression which would not make it street worthy.
I ran 14 or 15-1 in my race engines.  
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scottz28 scottz28
New User | Posts: 3 | Joined: 05/13
Posted: 05/11/13
04:41 AM

Thanks again . I will drop by again today to see if they came across the spec sheet.  I will let you know.