SBF 289-302 and 351w STROKER BLOCK CLEARANCE TOOL INSTRUCTIONS 
       and New 351c tool!

        Note 302 roller block shown, procedure is the same 351c,351w blocks

1. Arrange block as shown in photo #1.  With a permanent marker, mark the FRONT of the block "Driver" and "Passenger" as the block would set in the car (see photo #1). Mark the holes in the stroker tool as seen in photo #1. 

2. Place the tool on the block to mark the front driver side cylinder (cylinder #5), locate the tool with main cap bolts in the #1 pair of marked holes on the tool, ensure the solid 'wing' of the tool faces the front of the block (photo #1). The bent portion of the tool with the large marking hole, will lie just over the edge cast cylinder wall extension. Mark the area inside the marking hole (photo #2) with a permanent marker for later removal with a die grinder/dremel tool. Here is a sample of what it will look like.

3. Mark the remaining cylinders on the drivers side as discussed above with the exception of the rear driver cylinder (cylinder #8) which will use the #2 pair of marked holes (photo #3).

4. Place the tool on the block to mark the rear passenger side cylinder (cylinder #4), locate the tool with main cap bolts in the #1 pair of marked holes on the tool, ensure the solid 'wing' of the tool faces the rear of the block (photo #4). The bent portion of the tool with the large marking hole, will lie just over the edge cast cylinder wall extension. Mark the area inside the marking hole with a permanent marker for later removal with a die grinder/dremel tool.

5. Mark the remaining cylinders on the drivers side as discussed above with the exception of the rear driver cylinder (cylinder #1) which will use the #3 pair of marked holes (photo #5).

6. Use appropriate safety measures (safety glasses, dust mask, etc) and carefully remove the ENTIRE marked area with a suitable carbide tipped die grinder or equivalent (photo #6, photo #7). Removing the entire marked area and perhaps a touch more will ensure a comfortable clearance with no strength compromise.

7. The Ford block machining boss will need clearance to the lower portion just above the mark made to the drivers side front cylinder (#5). This boss can also be completely removed (Photo #8) Click here for printer friendly version.

     Photo #1                    Photo #2                      Photo #3                   Photo #4                

        Photo #5                 Photo #6                    Photo #7                    Photo #8

                                   Click images for full size photo!