#1  
Old 01-05-2023, 10:11 PM
Marv Marv is offline
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Default Supercharged 403ci '64 Bonneville build

Hi guys,

I originally built the 389 in my car up to a 400 with a mild combo, then upgraded that with Edelbrock heads and EFI, then chose a different direction as Pontiac parts are too hard to source down here in Australia. I wanted something I could drive long distances, which would make great power and still be easily serviced.

It wound up with an iron 6L LQ4 block, Texas Speed 403ci stroker kit, their LS3 CNC-ported heads, custom cam, Johnson short-travel tie-bar lifters, custom-length Manton pushrods, CHE trunion upgrade in LS3 rockers, PAC valve springs, a Moroso sump, all Gen4 sensors and wiring loom, Haltech Nexus R5 ECU/VCU, Harrop 2650 intercooled supercharger, Raceworks 1500cc injectors and Turbosmart fuel pressure regulator.

I figured it might be interesting to see a "junkyard LS" build that isn't quite Sloppy Mechanics-spec

You can watch the whole build story here (30mins):
https://youtu.be/2BHvAkoJx2s?t=1

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The Following User Says Thank You to Marv For This Useful Post:
  #2  
Old 01-06-2023, 10:21 AM
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Scott65 Scott65 is offline
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Way cool! Nice work
ETA: Great videography as well.

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'65 Tempest 467 3650# 11.30@120.31

Last edited by Scott65; 01-06-2023 at 11:08 AM.
  #3  
Old 01-07-2023, 11:26 AM
grandam1979 grandam1979 is offline
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Very cool nice car.

  #4  
Old 01-09-2023, 11:14 PM
pont3 pont3 is offline
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I applaud you for going with a tried and true MODERN solution to keeping these OLD cars moving.

  #5  
Old 01-14-2023, 12:10 AM
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Scarebird Scarebird is offline
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How is that small booster working with the supercharger?

  #6  
Old 02-23-2023, 06:58 PM
Marv Marv is offline
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Quote:
Originally Posted by Scarebird View Post
How is that small booster working with the supercharger?
Seems to work fine - has good pedal feel and never has an issue pulling up.

  #7  
Old 05-12-2024, 09:36 PM
kpbrown31 kpbrown31 is offline
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Curious what you did for an exhaust setup to get it to fit? Did you use headers or manifolds?

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