Jack Bros.

Performance Parts

Performance Products JACK BROS

Jack Brothers can source all the best engine COMPONENTS you need to make horsepower reliably & FAST From mild to wild, we can supply components for clients where we are machining and or building their engine

Our SUPERFLOW Dyno, controlled by YOUR DYNO is only available to these people as well.

We cater for all types of Race Engines, to street cruisers to high winding turbo charged 4 cylinder engines and everything in-between.

Engine Blueprinting SHEETS TBA

Surface Finish

By admin • September 15, 2021

Surface Finish Tester Used for cylinder bores, block and head surfaces etc. RA We have used it to evaluate the machine settings for the required RA

Crankshaft: Oil Gallery Plugs

By admin • September 13, 2021

CRANKSHAFT: OIL GALLERY PLUGS

SPECIALIZED MACHINING Operations

By admin • September 13, 2021

CUSTOM CNC MACHINING

Cylinder Sleeving

August 8, 2021

Cylinder Sleeving

DECK HT

July 14, 2021

Deck Height is where the piston sits in relation to the deck of the block at T.D.C. As the stroke, rod length and pin height of the piston are machined within tolerances, there can be a Stack-up affect. Easiest way is to use one cylinder as a comparator. Fit all piston and rod combinations to a cylinder and trying different combinations of pistons and rods to get the most even result. If one combo is slightly taller, fit it to the front, back and both sides of a V type engine, taking the measurements and recording them. If the pistons protrude from the bore the pistons will need to be machined. If down the deck of the block can be machined to the required Deck Height needed.