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Capizzi sets new LS Stock Bottom End record with Holley EFI!

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Staff Writer

10/26/2019

10 min read

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Capizzi sets new LS Stock Bottom End record with Holley EFI!

Capizzi sets new LS Stock Bottom End record with Holley EFI!

Staff Writer

10/26/2019

10 min read

Starting with a Gen IV 5.3L pulled from a 2011 Suburban, Jon outfitted it with a Garrett Gen 2 88mm turbo, a custom ground Baker camshaft and 243 casting heads that he hand ported himself. Topping the engine off with a Holley EFI system including a Dominator ECU, Holley Hi-Ram intake manifold/fuel rails, a slew of Holley sensors and methanol fuel to make this one rowdy combination! Jon took Holley's EFI training courses a few years ago and began working with the system at his shop Capizzi Automotive. Now Jon handles all of the tuning responsibilities and it's safe to say he has it figured out! For those questioning the "SBE" moniker, you can be assured that this 5.3L is all GM. Jon says that even the short-block fasteners are OE only relying on aftermarket hardware for the cylinder heads and balancer bolt.