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Rottler F68A CNC Block Preperation

State of the art machining capabilities operated by expert machinists. These machines are specifically designed for High Performance Engine Blue Print machining operations. Custom machine your components  1 part at a time. OEM'S use the Pan Rail as The machining Datum. This is why deck heights are not at a true 90 or equal end to end.Cylinder  bore locations and even lifter bore distances and locations are not on Blue Print Spec. Henson Racing Engines has invested in Rottler F68A CNC Equipment with 4 th axis and probing  processes to correct bore center spacing , deck heights and lifter bore locations. Our fixtures are based from the main line and cam shaft centerline. The process will increase Horse Power while Improving overall Engine Performance. Your Hot Rod, Vintage Restoration, Marine Engine, or Race Engine will perform at peak performance levels. Mike utilizes the best components and machining processes. Henson's will satisfy even the most demanding requirements.

Datum Set off The Main & Crankshaft CenterLine

Fixture and Computer Controls exact rotational angles. The probe and computer controls ball screw back lash to insure accuracy to .0001

Block Squaring operation.

Block blue printing is an exact science starting with the crankshaft and camshaft centerline.The block decks and cylinder bores are corrected to the crankshaft and camshaft centerline. The cylinder bores are then bored on center distances to blueprint specs. This process is achieved through the use of a datum fixture that references the crankshaft and camshaft centerline at a true 45 degrees. The block is probed from the centerline then indicated from the dowel location. This enables the bore spacing to be corrected and blue printing the deck surfaces square to the camshaft and crankshaft centerline at a true 45 degree angle is achieved..The dimensions are imputed to the CNC control holding  tolerances to 0001. This accuracy  is achievable with CNC machinery and specialized precision locators, and tooling.