intake measurements

[Patf10]

Well i have been looking everywhere for some dimensions. In particular im looking for a standard square bore intake (edelbrock) dimensions hole sizes ect. Also looking for dimensions of a GM tbi. I have looked all over for these and cant find anything! Was wondering if anyone had these laying around or knew of a place to get some. Working on a project and need to make an adapter plate. This is doubling as school and hobby.

Thanks
Pat

[ironman_gq]

I know you can buy the adapters from Jegs or summitracing. the bolt pattern for a squarebore is 5-1/8 x 5-5/8 the shorter being the width. I think the bolt holes are 5/16 or 3/8.

[Patf10]

alright so that is the hole dimensions anyone know what the measurements for the square hole is?

im surprised i haven't been able to find these dimensions online anywhere

[ironman_gq]

go down to the parts store and buy a square hole gasket and measure that.