'87 S10 Blazer - 5.3L 88mm GT4788 build - LM7 - BMF Racing
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'87 S10 Blazer - 5.3L 88mm GT4788 build - LM7 - BMF Racing
Well its about time for a build thread for Jason's '87 Blazer. The truck previously had a stock 5.3L with a 74mm PTE that made 554whp & 574wtq @ 12psi on a dynojet. This new setup will be built bottom end with a PTE GT4788. Build details below.
Engine:
-5.3L new GM block
-Stock crank
-K1 H-beams w/ARP 2000 bolts
-Wiseco pitsons
-Ls9 head gaskets
-317 heads
-ls7 lifters
-stock rockers w/trunions upgraded
-Victor LS1 intake w/mid sized elbow
-80lb injectors
-Snow stg2 alky kit
Turbo:
-PTE GT4788 w/0.96ar t6
-JGS 60mm WG
-JGS 60mm BOV
-Hotside is stock drivers manifold w/vband 2" crossover
Pass side is custom log manifold 2.75 ID to T6
-5" DP fender exit
-W2A intercooler behind dash
-AMS 500 boost controller
Trans & rearend:
-Turbo 400 w/t-brake
-8.8 Ford w/disc brake (cut down from explorer)
-homemade Caltrac style bars
Below is a couple pics of the 74mm old setup.
Engine:
-5.3L new GM block
-Stock crank
-K1 H-beams w/ARP 2000 bolts
-Wiseco pitsons
-Ls9 head gaskets
-317 heads
-ls7 lifters
-stock rockers w/trunions upgraded
-Victor LS1 intake w/mid sized elbow
-80lb injectors
-Snow stg2 alky kit
Turbo:
-PTE GT4788 w/0.96ar t6
-JGS 60mm WG
-JGS 60mm BOV
-Hotside is stock drivers manifold w/vband 2" crossover
Pass side is custom log manifold 2.75 ID to T6
-5" DP fender exit
-W2A intercooler behind dash
-AMS 500 boost controller
Trans & rearend:
-Turbo 400 w/t-brake
-8.8 Ford w/disc brake (cut down from explorer)
-homemade Caltrac style bars
Below is a couple pics of the 74mm old setup.
Last edited by BMF_Racing; 12-03-2013 at 01:48 PM.
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ok, been forever since I updated this thread. Here are a few pics of the Engine now in place, W2A setup, and Fender exit all moched up. Lots of painting and wrapping to do once WG tubing exits into the DP. Hoping to have it started in the next couple weeks.
5" fender exit
Priority WG placement
More updates to come soon.
5" fender exit
Priority WG placement
More updates to come soon.
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#9
I still have the headers, but not the crossover. The manifolds will have to have the v band you want welded on them. If you want them let me know shoot me a pm. Brad and I hand built them they are not the best but they do fit around the steering shaft in a s10 blazer facing forward. Thanks!
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Update: A little more done on the project over the weekend. The Hot side and DP are completed and wrapped. WG dumps into the 5" DP. The turbo support is now finished. Also got the Alt mounted and correct belt installed. Also worked on the fuel barrier from the driver's compartment. Couple pics below.
Wastegate dump tube to DP.
Alt Mount:
Getting closer ... More updates to come.
Wastegate dump tube to DP.
Alt Mount:
Getting closer ... More updates to come.
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I'm working on getting some more pics. Its up and running now. First weekend out he was getting lots of false knock, that fixed now. It still needs final tuning, but we are creeping up on it. Thinking an 8 psi launch and 15 psi there after at 16* and 11.0 AFR. Going to local street car race tonight, guess we will see how she does.
#20
Pretty bad *** for sure. ALOOOOOOOT of work.
I am always afraid I'll forget how the car/truck would go back together after gutting it. It always seems to take 2 or 3 times longer than I am planning on.
I am always afraid I'll forget how the car/truck would go back together after gutting it. It always seems to take 2 or 3 times longer than I am planning on.