so, mine being a 2000 can i do that j hook mod, im assuming not. and is there just a casting number that would tell me if is is a 53 block?
Bus years of manufacture aren't always clear- components may may be off a year or 2 sometimes.
12V has more mods than the electronic 24 V Figure out which you have first. post a pic or your vin and I can tell you.
Casting # is on side of block- passenger, I think. Nope, both sides, says Web.
12V CUMMINS PERFORMANCE
VE44 Power Pin - For 1989 to 1993 model years, the 12v Cummins used a VE44 injection pump. While not as potent as the later P1700, swapping out the "power pin" is an affordable way to gain 20 to 30 horsepower. Aftermarket power pins replace the factory pin (which controls the fuel flow rate) and have a more aggressive geometry, essentially increasing maximum fuel delivery. There are many designs on the market, and a quality pin shouldn't run you more than $150.
P1700 Delivery Valves - Delivery valves are located within the P1700 injection pump found on 94-98 12v Cummins turbodiesels. The delivery valves, or "DVs" for short, serve as check valves for the fuel system, but also play an integral role in injection duration. Upgraded DVs typically create a sharper injection event with increased duration, which translates into greater power (or more realistically, power potential). Several stages of delivery valves are available, but don't get greedy; opting to install competition DVs on a truck that is used regularly as a tow rig or needs to remain street-able isn't necessarily a wise choice.
P1700 Fuel Plate - The fuel plate, or fuel stop plate, is another option for 94-98 12v Cummins. It controls fuel flow and upgraded designs allow the P1700 injection pump to simply flow at a higher rate. It's inexpensive and can result in gains of more than 100 horsepower, though a conservative 30 to 50 horsepower increase is more realistic for most street driven rigs.
Intercooler - An intercooler became standard for the 12v Cummins for the 1991 model year. For 1989 and 1990 model year pickups, consider installing an intercooler for cooler EGTs and better overall performance. For the factory intercooled 12v Cummins, a more efficient intercooler will prove beneficial for engines with moderate to heavy fuel system modifications as the cooler, denser air charge will increase overall performance potential and help alleviate and/or prevent problems associated with high EGTs.
Killer Dowel Pin Warning - Don't assume that luck is going to save you from the "Killer Dowel Pin". If you're modifying your 12 valve for more power, you'd might as well invest in a KDP eliminator kit. It's cheap insurance against the possibility of a complete engine failure due to a simple, 50 cent metal pin vibrating loose from the front of the engine block.
