How To Build a Chevy 383 Stroker - Part 1: Block & Crank
This is a new multi part series on how to assemble a small block Chevy 383 stroker motor (actually it is an internal combustion engine - "motors" are electric - but I digress LOL).
MOST of the assembly applies to any small block engine. I have divided up the assembly procedure into many parts so you can skip to the specific part you are looking for, i.e: crank, camshaft, timing chain or how to adjust rockers.
This whole series was shot by myself with my iPhone so presenting, filming and assembling could all be done smoother but "ir-regardless" I hope it helps.
Thank you. Shannon http://www.corvettesandcustoms.org
Dyno pull of my 318 stroker (390) Dyno pull of my 318 with a 4" stroker kit, bringing the displacement to 390 cubic inches. It's a very simple and mild street engine combo, consisting of 9.3:1 compression, a mild hydraulic cam, and bowl ported but otherwise stock iron magnum truck heads. It made 367 HP @ 5,300 rpm, and 407 foot pounds of torque @ 4,100 rpm. This engine is going in my 1989 Jeep Wrangler. Special thanks to Performance Only in Delray Beach, FL for the excellent machine work, building of the engine and tuning. Thanks to Eddie "Elvis" Miller at The Engine Works for working the Dyno and providing tuning assistance.
1973 Charger 318 390 Stroker on the dyno for a quick run
318 to 390 cubic Inch Stroker Specs:
ICON Forged Flattop pistons
Forged H beam Rods
Comp Cams Thumpr Cam
Heavily Ported 340 T/A Heads
1.5 Harland Sharp Offset roller rockers
Edelbrock Performer Airgap manifold
Holley 850 Avenger Carb
Headers with 3" Custom dual Exhaust
MSD DIstributor, Coil, and Ignition Box
TCI StreetFighter 904
8-1/4 LSD rear with 4.10 gears
The engine is running high 10's low 11's compression ratio and therfore decided to run a blend of race fuel with an octane rating near 100. After the Dyno run I realized that the cam is doing nothing to help the engine make power and it was evident in the numbers. Don't get me wrong it sounds great but its not much in the power department, but thats the cams design I guess. The car made 301 RWHP and 331 FT LBS of Torque.
We changed the carb to a 650 double pumper and were expecting better results since the 850 is quite large for the engine but to no avail. The carb change only produced 2 more rwhp and 1 more ft lbs of torque. Not worth the expense of changing it especially for what ill be using it for.
I will be changing the manifold to a single plane and the cam will be changed for something more aggresive like comp cams XR292HR-10. Hopefully this will get a little more power out of the sucker.
Thanks for watching
Cold start 1973 Dodge Dart 318 (below freezing!)
1973 Dodge Dart modded 318:
Don't mind the birdpoop and overall dirty car!
Edelbrock streetmaster intake
True dual 2.5" with Raptors
Craigar SS 15x10 and 15x8 rears and front respectivly
Hijackers, etc etc
Lots been done, it's still a raw streetmachine though but solid as it proves starting for the first time in two weeks -2 celcius out!!!