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**1957 Chief** · 09-16-2021, 02:56 PM

As I mentioned, we will put an L86 (6.2L) with a 4L80 in the truck. My buddy owns Gwatney Performance Innovations (GPI) and we had the heads ported and better valve springs installed, Stage 3 cam, aftermarket rods and pistons and other stuff. Truck should make 600 hp. Another buddy of mine built a 4L80 with billet internals with a 3000 rpm stall. For the rear we have a 12 bolt with 3:73's, Detroit true-trac and moser axles. Truck should be pretty stout...

09-16-2021, 02:56 PM	#2
1957 Chief Proud Vet that loves the USA Join Date: Jun 2016 Location: Beebe, AR Posts: 458	Re: Sandy~~1984 C10 L86/4L80 build As I mentioned, we will put an L86 (6.2L) with a 4L80 in the truck. My buddy owns Gwatney Performance Innovations (GPI) and we had the heads ported and better valve springs installed, Stage 3 cam, aftermarket rods and pistons and other stuff. Truck should make 600 hp. Another buddy of mine built a 4L80 with billet internals with a 3000 rpm stall. For the rear we have a 12 bolt with 3:73's, Detroit true-trac and moser axles. Truck should be pretty stout... Attached Images Last edited by 1957 Chief; 09-16-2021 at 03:25 PM.