Silver HSV GTS Monaro coupe with a Sam's Performance built 383 on the hub dyno, making 500+ rwhp

HSV GTS Monaro · August 2020

Merrick's GTS Monaro: SP Built 383

500+ rwhpat the wheels

Merrick's HSV GTS Monaro with an SP Built 383 stroker, making 500+ rwhp.

Merrick's GTS Monaro runs an SP Built 383 cubic inch stroker, built with Callies and Diamond components.

It made 500+ rwhp on our hub dyno, and it sounds every bit as good as it goes.

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