Hey everyone! I have a 1977 K5 with a few healthy mods on it already. It has a Voodoo Lunati Cam, ported camel hump heads, Victor Jr Intake, Holly 850 Carb, 4" Rough Country Lift (looks like 6"). It runs very well as is.

Alas, I have found myself needing more power and wanting to dip into some sand drag racing. I am building a 496 BBC that sould have around 10.5:1 compression and a 200 shot of spray. I will be using this thread as a way to share my progress.

However, I have the stock TH350 with Dana 44 and coporate 12 bolt still. I honestly believe the previous owner slapped in 2.76 gears to help with fuel mileage. I say this because a year ago I did run it at the sand drags and did not even come close to hitting 3rd gear at the 300' mark.

So heres where I need some advice:

• TH350 - I need to beef it up to handle the new power. What all needs to be redone? Clutches? I have a shift kit installed already.
• Dana 44 - I am getting some new 30 spline axles and b eefed up U joints. What gears do I need? 4.10's with LSD?
• Corporate 12 bolt - 30 spline axles beefed up ujoints and 4.10's with LSD?
• NP203 TC - I think I will be modding this to be part time 2 wheel drive. I will need new hubs right? What else do I need?
• Torque Converter - how big?
• Traction Bar
• Wheels/Tires - I currently have 15x8" aluminum rims with 33x12.5" BFG All Terrains. Should I go wider with TSL Thornbirds?
• Suspension - I want to go coil over but that is super pricey. Should I go with a 2" lift instead of the 4"? I need to lower it to make it more stable at high speeds right?
• Steering - new hydro steering box?
• Roll Cage
• 5 Point Harness
• What else do I need to mod?

I will be posting some pics soon of my current set up just to show ya'll where I am starting from. I look forward to hearing any and all input positive and negative! I got thick skin

 

Does nobody else have a similar setup on this forum!? Bueler...buelerrrrr

Anyway,

UPDATE:

• TH350 - I need to beef it up to handle the new power. What all needs to be redone? Clutches? I have a shift kit installed already.

Purchasing a TH350 rebuild kit

• Dana 44 - I am getting some new 30 spline axles and b eefed up U joints. What gears do I need? 4.10's with LSD?

Did some research and it looks like I already have 30 splines which should be ok. All I need now are 4.10 gears and a install kit with new bearings etc...

• Corporate 12 bolt - 30 spline axles beefed up ujoints and 4.10's with LSD?

Found a true trac with 4.10 gears on craigslist. Will also get an install kit.

• NP203 TC - I think I will be modding this to be part time 2 wheel drive. I will need new hubs right? What else do I need?

Getting a part time kit and rebuilt kit

• Torque Converter - how big? Still working on that
• Traction Bar - Offroad Design makes a nice one
• Wheels/Tires - I currently have 15x8" aluminum rims with 33x12.5" BFG All Terrains. Should I go wider with TSL Thornbirds? Still not sure
• Suspension - I want to go coil over but that is super pricey. Should I go with a 2" lift instead of the 4"? I need to lower it to make it more stable at high speeds right? Still not sure
• Steering - new hydro steering box? Still not sure
• Roll Cage - Adding another roll bar and will have them welded together. Might have a prefab one added in the cab.
• 5 Point Harness -Eventually
• What else do I need to mod?

 

Pics as she sits now: