BBC CASTING #'S
#1
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BBC CASTING #'S
HELLO i HAVE A BBC THAT I WAS WANTING TO FIND OUT JUST EXACTLY IT WAS. I HAVE THE NUMBERS OFF THE BLOCK AND HEADS . THE PAD IN FRONT OF THE PASSENGER SIDE HEAD READS=T1001TRW C4B116871 ON THE BACK OF THE BLOCK IT READS 999289 T12 DRIVERS SIDE HEAD READS 12673 GM11T PASS 336781 PASSENGER SIDE HEAD READS 338781 GM9T 12773 . IF SOMEONE CAN HELP ME OUT I WOULD GREATLY APPRECIATE IT.
#2
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#4
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THANKS ONE BAD i FIGURED IT OUT. 113CC CHAMBER HEADS CAME IN A 73 -79 PASSENGER CAR 270 WHOPPIN HP !! i'M GUESSIN THIS WOULDNT BE A GOOD CANDIDATE FOR A DRAG CAR?? :lol: BUT ON A SERIUOS NOTE WITH A CAM UPGRADE AND SINGLE PLANE INTAKE AND GOOD CARB AND HEADERS WHAT IS THIS ENGINE CAPABLE OF ??
#5
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Originally Posted by whitey70ss
THANKS ONE BAD i FIGURED IT OUT. 113CC CHAMBER HEADS CAME IN A 73 -79 PASSENGER CAR 270 WHOPPIN HP !! i'M GUESSIN THIS WOULDNT BE A GOOD CANDIDATE FOR A DRAG CAR?? :lol: BUT ON A SERIUOS NOTE WITH A CAM UPGRADE AND SINGLE PLANE INTAKE AND GOOD CARB AND HEADERS WHAT IS THIS ENGINE CAPABLE OF ??
You will also have a terrible time finding pistons for them that will work. They are neither a closed chamber head nor open. A true open chamber is 119CC.
Take them down to your local scrap yard and donate them, or use them in a tow truck.
They won't make HP, but they will make torque. Good for towing, not hot rodding.
#6
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Originally Posted by OneBadGMC
Originally Posted by whitey70ss
THANKS ONE BAD i FIGURED IT OUT. 113CC CHAMBER HEADS CAME IN A 73 -79 PASSENGER CAR 270 WHOPPIN HP !! i'M GUESSIN THIS WOULDNT BE A GOOD CANDIDATE FOR A DRAG CAR?? :lol: BUT ON A SERIUOS NOTE WITH A CAM UPGRADE AND SINGLE PLANE INTAKE AND GOOD CARB AND HEADERS WHAT IS THIS ENGINE CAPABLE OF ??
You will also have a terrible time finding pistons for them that will work. They are neither a closed chamber head nor open. A true open chamber is 119CC.
Take them down to your local scrap yard and donate them, or use them in a tow truck.
They won't make HP, but they will make torque. Good for towing, not hot rodding.
#7
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Originally Posted by OneBadGMC
Originally Posted by whitey70ss
THANKS ONE BAD i FIGURED IT OUT. 113CC CHAMBER HEADS CAME IN A 73 -79 PASSENGER CAR 270 WHOPPIN HP !! i'M GUESSIN THIS WOULDNT BE A GOOD CANDIDATE FOR A DRAG CAR?? :lol: BUT ON A SERIUOS NOTE WITH A CAM UPGRADE AND SINGLE PLANE INTAKE AND GOOD CARB AND HEADERS WHAT IS THIS ENGINE CAPABLE OF ??
#8
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Originally Posted by tcarda
Originally Posted by OneBadGMC
Originally Posted by whitey70ss
THANKS ONE BAD i FIGURED IT OUT. 113CC CHAMBER HEADS CAME IN A 73 -79 PASSENGER CAR 270 WHOPPIN HP !! i'M GUESSIN THIS WOULDNT BE A GOOD CANDIDATE FOR A DRAG CAR?? :lol: BUT ON A SERIUOS NOTE WITH A CAM UPGRADE AND SINGLE PLANE INTAKE AND GOOD CARB AND HEADERS WHAT IS THIS ENGINE CAPABLE OF ??
You will also have a terrible time finding pistons for them that will work. They are neither a closed chamber head nor open. A true open chamber is 119CC.
Take them down to your local scrap yard and donate them, or use them in a tow truck.
They won't make HP, but they will make torque. Good for towing, not hot rodding.
So I guess the thing to check would be the chamber. If it's a true 781, it won't be a 113CC.
If it's a semi-open, like I said before, it'll be a pain in the arse to get a good piston for it.
Even if it's a 781/049, in order to make it breathe, the valves will have to be upgraded to 2.19/1.88s, which means new seats.
By the time you get done messing with rebuilding them and doing needed upgrades, it would have been just as easy to buy a low end set of aluminum heads.
And yes, you can make good power. I ran 13 flats with a 462 in a 3700 lb truck with them with a 9.5:1 motor (about 435 HP). Same motor with a B&M Powercharger 250 (4-71) with 7 PSI went 11.30s on pump gas in 1994 (about 660 HP).
Same motor with an alky dominator on top ran 10.50s just with a carb/fuel change (about 820 HP)
http://www.youtube.com/watch?v=QsCQbYpzQPM
http://www.youtube.com/watch?v=LW-9NV0VDMQ
#9
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so basically the heads are boat anchors. and the block has low compression pistons?? I was thinking about putting it in my 81 malibu drag car for a low budget play toy but by the sounds of it this thing would be slower than my street car.???
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You could make it into a good motor, with a LOT of work. Realistically though, it's probably going to make the same power as a good small block, except it weighs 200 lbs more.
I mean, if it's together and running, toss it in there, assuming you have headers and appropriate front springs for your malibu. Spray the snot out of it and don't care about blowing it up.
I mean, if it's together and running, toss it in there, assuming you have headers and appropriate front springs for your malibu. Spray the snot out of it and don't care about blowing it up.