Professional Cylinder Head Porting

Horsepower Heads is far more than a traditional cylinder head porting company…

Our point of difference comes from fully understanding the purpose of your engine and the application in which you will be using it. We plan any modifications and part selections specifically to suit you.

This approach and 30 years dedicated to the craft are what gives each of our clients a cohesive engine combination and a winning edge.

3 April 2020, 10:39 pm

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20 March 2020, 10:48 pm

Honda RBB, Subaru EJ25 and Hillman Imp this past week. Coming up next is EVO8, VR38, RB26, BDG & Cleveland. ... See MoreSee Less

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7 February 2020, 1:39 pm

Dart 12.5 degree SBC heads. I have 60 hours in these from design to flow testing to finished machining from 'cubed' castings. ... See MoreSee Less

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5 December 2019, 3:59 pm

This little Hillman Imp head was impressive on the bench today. We bettered the previous best and there's plenty more to come with further R&D. ... See MoreSee Less

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