OneStopRestoration's Special Orange 69 Chevelle 300 Deluxe Coupe

[OneStopRestoration]

Heads recieved enough decking to get the huge 074 chambers down close to the original 842s. With super thin cometic gaskets and head work compression came in at 10.8 to 11.0 :1 accross the pistons.

Next part gets a bit tougher. With that much machining on the heads this sinks the bolt holes for the intake further downward in the engine. This then means the intake holes no longer line up and you cant put the bolts in.

[OneStopRestoration]

I had to start this project with building a fixture plate to hold the intake on the mill. Not to terribly hard but turned out great. From there the intake can be positioned so that it can then be indicated in to cut the right amount of the material off the intake front to back and from top to bottom of the runners to fit near perfectly on the engine.

Once the mating sides of the intake are cut it re aligns the bolt holes, but now you have the issue of little to now front and back wall clearance. Once again a fixture had to made to hold the intake flat to the table for the front and rear intake walls to be fixed and re machined to match the block.

[dykstra]

WOW Rick! Engine is looking great! Can’t wait to hear it!