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mike16 · 09-14-2015, 08:13 PM

whats the gearing in the rear end. thats what determines the usable range of torque and power. I have a 72 c10 with a 307 3 speed on the column. and 373 gears in the rear it is not fast and I am always serching for that next gear. even if it were a bbc I'd still be searching for it.

But on the other hand I have towed some increadable loads, very slowly thanks to the 373 gears. I have though alot about going with highway gear set. but on those occasions when I haul thos crazy heavy loads I am always greatfull for those 373 gears.

Too bad its a 3 speed because I am so bias in favor of three speeds, especialy if they are all origonal. if not... then you might consider a NP 4500 s speed overdrive tranny install befor you go with a BBC or sbc swap. cheeper all around and it really changes the personality of the truck, especially if you do highway driving.

all that being said, I find the small block gets the job done more cost effectively. BBC is kinda overkill 90% of the time.

09-14-2015, 08:13 PM	#4
mike16 Registered User Join Date: Dec 2009 Location: bisbee, arizona Posts: 1,530	Re: bbc or sbc whats the gearing in the rear end. thats what determines the usable range of torque and power. I have a 72 c10 with a 307 3 speed on the column. and 373 gears in the rear it is not fast and I am always serching for that next gear. even if it were a bbc I'd still be searching for it. But on the other hand I have towed some increadable loads, very slowly thanks to the 373 gears. I have though alot about going with highway gear set. but on those occasions when I haul thos crazy heavy loads I am always greatfull for those 373 gears. Too bad its a 3 speed because I am so bias in favor of three speeds, especialy if they are all origonal. if not... then you might consider a NP 4500 s speed overdrive tranny install befor you go with a BBC or sbc swap. cheeper all around and it really changes the personality of the truck, especially if you do highway driving. all that being said, I find the small block gets the job done more cost effectively. BBC is kinda overkill 90% of the time.