Smoke shows arent a problem, and a rolling punch will easily put those newer trucks (and a few musclecars) in the rear view mirror! Driven with a light right foot, this combination sees 17mpg city and19-20mpg highway on a regular basis, and is very happy on 87 octane! This truck is a blast to drive! A true ‘sleeper’, with a throaty exhaust note and barely noticeable idle. Here is a video of the truck on the dyno: The dyno sheet shows a run with factory manifolds and y-pipe, as well as a run with the headers and flowmaster collector. Stock GM air cleaner with Holley element and lid Auto Specialties underdrive crank pulley stock 700-R4 trans, stock converter, and 3.08 gears. Stock GM rocker arms, Summit stage-1 intake + trans-dapt center mount TBI adapter UNPORTED stock 42mm 450cfm GM 5.7 throttle bodyĬustom chip/fuel pump/spring kit from Brian 1.5/2.5 shorty headers, flowmaster collector, magnaflow 3″ hi flow cat, and flowmaster super44 muffler. 449/.458 flat tappet cam and matching valve springs Vortec ‘906’ heads, with ‘street port’ special, 3 angle seats + summit 1.94/1.5 valvesĬomp 212/218. 060-over, HME coated bearings Speed Pro flat top pistons, stock rods and crank- balanced 9.7:1 compression

The goal was 200hp/300tq at the rear wheels and 20mpg- all on 87 octane fuel! The engine package is very basic- just a good combination of parts that work well together: Scott LKN Speed set out to build a potent, low-budget Vortec TBI smallblock package for customers and used his own work truck as the test mule. This setup is very popular especially in the 2wd trucks which led me to improve upon it using a Vortec 350 and replacing the factory roller cam with a Lunati 20080660 roller camshaft for more power and better reliability and listed that setup under my recommended engines page as engine number 2.

Cam for 350 tbi