4.8/5.3 swap questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bagd72Chevy · 01-06-2015, 07:01 PM

I have a 4.8 I pulled from a 07 classic truck, complete. From driveshaft yoke to the ECM, pedal, and Tac, everything. I was going to cut some adapter plates on my CNC to bolt it to the factory 67 mounts, what is the recomended position. I've seen drawings for everything from back 0.500" to forward 3".

I would like to use the factory manifolds and everything pretty much as is. I'd like to keep the factory AC compressor which I think means I may have to modify the passenger mount. Any recomendations?

Also, I have a 307/Th400 right now in my 67 GMC. Will the shifter connect to the 4L60 and just not let me go into 1st?

Thanks,Ryan

01-06-2015, 07:01 PM	#1
Bagd72Chevy C10 Collector Join Date: Oct 2003 Location: Baton Rouge, LA Posts: 417	4.8/5.3 swap questions I have a 4.8 I pulled from a 07 classic truck, complete. From driveshaft yoke to the ECM, pedal, and Tac, everything. I was going to cut some adapter plates on my CNC to bolt it to the factory 67 mounts, what is the recomended position. I've seen drawings for everything from back 0.500" to forward 3". I would like to use the factory manifolds and everything pretty much as is. I'd like to keep the factory AC compressor which I think means I may have to modify the passenger mount. Any recomendations? Also, I have a 307/Th400 right now in my 67 GMC. Will the shifter connect to the 4L60 and just not let me go into 1st? Thanks,Ryan __________________ ///Ryan 1972 Chevy C-10-Bagged, Blown LT1, 700r4, Suicide Doors 1967 GMC- SC & Cam'd 4.8, built 4l80, 3200 stall, posi, 4.10 1967 Chevy LWB- 454 and patina 1971 Blazer - Rusty 1968 Crewcab project

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