12.7 Horsepower increase

Call Erich at ss60 performance tell him what you have and what you want, he will talk shop with you very knowledgeable. If he doesn’t answer leave a message he’ll call you back.

 

Maybe he’ll get back to you soon. My truck is an 80 flc flat top and I pull flatbed and step deck. Some may call bs on my fuel numbers, but I am not trying to prove or sell anything, just saying it works good for me . 75k miles last year 7.6 mpg average.

 

From what I’ve researched, you’re mk engine doesn’t have coolers, but block is drilled and capped. New OH kit comes with new cooler nozzles. I think you also have 16.5 pistons.

 

My 12.7 had a 5195 cam & 4970 injectors...that tune produced 697/2190 at the crank on the dyno. It was just torn apart for a bullgear issue & I switched cams. I went to a 5526 cam & the it jumped to 799/2850. But it needs to be retuned so I don't burn up any pistons because they're only OEM grade.

 

I have a 12.7 in my glider. Guy I spoke with today says get marine injectors and marine cams.... would that be better for an upgrade or a Bully dog power box?