Penton Owners Group

General Discussion => Penton Talk => Topic started by: Rain Man on April 29, 2007, 04:22:44 PM

Title: JACKPINER INTAKE PORTS
Post by: Rain Man on April 29, 2007, 04:22:44 PM
I have 2 1973ish JP cylinders side by side and 1 of them has these scallops in the bore just above the intake ports.  The other one has the same scallops, only their extended into the beginning of the intake ports.  I'm not sure what it all means, or if there is a definate advantage  of the ports being extended on that 1 cylinder.
 any comments, suggestions ??
Thanks

Raymond
 Down East Pentons
Title: JACKPINER INTAKE PORTS
Post by: Rain Man on May 05, 2007, 08:45:05 PM
400+ Penton enthusiasts on this web site and not 1 of you know anything about the Jackpiner ports ??  cmon, give me a break

Raymond
 Down East Pentons
Title: JACKPINER INTAKE PORTS
Post by: Merlin on May 05, 2007, 08:57:44 PM
...........the first cylinder is in original piston port configuration,the second had a reed..........