Randy’s dragster was a solid 8.90 performer with the 762HP BBC engine and running on a throttle stop.  The previous owners had tried a much higher horsepower 615” BBC and the dragster chassis simply had trouble planting itself after 700 feet.  Randy’s Y-Block had the same issues with traction at the top end of the track.

Lorena, Texas (South of Waco)

Working again, had to remove a little metal from the chambers.

Next head, some of this stuff is SHARP.

 


 


 

OUCH!!!!!!!!!! Your  Block bit you!  Those big intake valves look awesome, however to my untrained eyes they look to be shrouded pretty seriously.  I hope I'm wrong.

John - "The Hoosier Hurricane"

Hi, John Mummert did the ports and the chambers, they flow 245@.500@28" and 205@.500@28" I did some changes and did not run them on my bench.

Got any new updates?

Needed to catch up on other work, will be back on it this weekend, will be rechecking, piston to valve, piston to head, valve to block clearance, then modify rocker arms for ball and ball push rods (5/16 ball, cut passage for oil to the top ball) 

Thanks for the interest 

Why the change for the pushrods?


Lawrenceville, GA

I do things to solve problems I have had in the past (push rods ending up in the valley), this may or may not be of any value but I try.  

alu rocker got too big ball problem?


Hyvinkää, FI