Big block motor gurus, info help???
 

Can anyone help me out and tell me for sure what this came out of, here are front pad numbers, I can't see the back pad casting numbers yet.
TO202CTB 12J209360, it looks like it has a factory high rise intake on it. It has a spun bearing previous owner said. Any idea what its worth? Thanks for any help, Randy

Re: Big block motor gurus, info help???
 

CTB is 1972 car full size, 402 & 396, manual or auto, 210 & 240 HP. What is the casting number of the intake?

Re: Big block motor gurus, info help???
 

Engine assembly plant breakout
T Tonawanda engine assembly plant
O2 February
02 2nd day of February
CTB 1972 Camaro, Chevelle 396/402 (240hp) LS3 w/Air Injection w/TH auto trans
or 1972 Chevrolet (full size car) 396/402 (210hp) LS3 w/Air Injection w/manual trans


VIN breakout
1 Chevrolet (car line)
2 1972
J Janesville assembly plant
209360 vehicle serial number

Re: Big block motor gurus, info help???
 

Thanks guys, Here is intake number 3883948. It has a turbo 400 behind it now

Re: Big block motor gurus, info help???
 

That manifold was used on most Chevy full sized cars, Cevelle, Vettes, El Caminos, Novas, Camaros, from 1966-69. Quarda Jet manifold, in real nice shape you can get upwards of $200 bucks.
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Re: Big block motor gurus, info help???
 

Thanks for the info Lee, I'll be selling it if you know anyone wanting one. Randy

Re: Big block motor gurus, info help???
 

Last question how do I find what horsepower it has? Thanks for the help. Randy

Re: Big block motor gurus, info help???
 

The HP rating was a dressed, installed number. The longblock was the same for both numbers. At this point you need to remember with an incorrect intake all bets are off until proven otherwise. Might pull the intake and find a casting date so you know what year it is. As to the long block ID the head casting numbers and date codes. If they are correct they may be original to the block. Roll it over and check the crank too. If you have the exhaust manifolds with AIR fittings, look up those casting numbers and dates.

Re: Big block motor gurus, info help???
 

OK here are all the numbers I can find on this

Re: Big block motor gurus, info help???
 

more

Re: Big block motor gurus, info help???
 

mor

Re: Big block motor gurus, info help???
 

mo

Re: Big block motor gurus, info help???
 

454 heads on a 396 or 402 block...:chevy:

Re: Big block motor gurus, info help???
 

Like I thought ("...all bets are off until proven otherwise") a collection. The good news is they are all external parts and the short block might be an intact, grouped LS3 assembly from 72.
But to determine that you will need the crank rod and cam numbers.

Block
39999290 72 402 240hp 2 bolt
GM10T
HI PERF PASS
F9

Heads
336781 73-85 454 oval port 113cc
J23 73 Oct.23, 1973
L10 76 Dec.10,1976
GM9T

Exhaust
14045176 RH 67-87 396/454 truck
3994045 LH 73-75 454 police

Re: Big block motor gurus, info help???
 

WOW! You guys are GOOD!

Re: Big block motor gurus, info help???
 

Thanks Dave, Especially for the price right?
Need to dig for it but somewhere I might still have the block numbers off your truck verifying it was a correct L47/NE2.

Re: Big block motor gurus, info help???
 

These guys are not only good, they might be the best. They make this forum amazing.
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Re: Big block motor gurus, info help???
 

THANKS GUYS for your help, it is VERY much appreciated!!!!!!!