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Ekliptix · 09-13-2017, 09:28 AM

I had a similar dilemma. I ended up going the big block route (402 out of a 70 C10, with alumn heads cam, 430hp/460tq). My goal was to make a big block style truck, making it look as factory as possible, while being a lot quicker.

As others have stated, it is a hassle. Engine mounts, fan shroud, new trans (700R4), headers, and the accessories and related brackets were the biggest pain in the butt. My radiator stayed the same. I'm still getting the AC hooked back up to the new style compressor.
All said and done, it was really expensive and I may have gone the LS route if I could do it again. Then again, I don't mind looking at the result.

09-13-2017, 09:28 AM	#15
Ekliptix Registered User Join Date: Aug 2013 Location: Calgary, Alberta Posts: 674	Re: Small block or Big Block I had a similar dilemma. I ended up going the big block route (402 out of a 70 C10, with alumn heads cam, 430hp/460tq). My goal was to make a big block style truck, making it look as factory as possible, while being a lot quicker. As others have stated, it is a hassle. Engine mounts, fan shroud, new trans (700R4), headers, and the accessories and related brackets were the biggest pain in the butt. My radiator stayed the same. I'm still getting the AC hooked back up to the new style compressor. All said and done, it was really expensive and I may have gone the LS route if I could do it again. Then again, I don't mind looking at the result. __________________ 1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD.