Mechanic's....I have a question?

[AKSNOWRIDER]

View attachment 14073

E,

All good questions and I can find out the answers, I just have to go through all the reciepts. This was an off body rebuild and I have over 30,000.00 in reciepts for it that describe everything.
I am just guessing on the lifters, no I don't hear them. Yes it has a very lumpy cam, idles like whoop, whoop, whoop. Hijacker headers, edelbrock manifold (have to look on carb but I notice it doesn't seem to kick in the other 2 barrels when you floor it, like it is already running on all 4) It has Axell (sp) wiring, and I will have to check on the other.

have owned alot of hot bigblocks...depending on compression and cam profiles there is several things you can do...40 degrees is not to much for a well built bigblock..but is to much for low octane fuel...regardless of ignition(hei or points) having it recurved so all timing is in by 3000 rpm helps performance, as well as having a vacuem advance for fuel economy..water injection will help alot with the ping...but won't stop it if compression is high...one thing that helps on ping is open the overlap on the camshaft..but that will move the power up in the powerband...and will hurt low rpm power...if it has closed chamber heads you could swap for opens(drops compression)but I wouldn't...if it only pings in high gear you can add a retard box to back the timing down in high gear..msd makes a great one...

 

[switchback]

You've gotten a lot of good responses regarding the engine. I didn't see any info on what gears you have in it. Do you know what's back there? What rpm's are you running at like 65 mph?

 

[Estevahn]

Serpentine belt set up too. Awsome!

Looks nice.

 

[kssnow987]

That truck is beautiful. I had a 69 3/4 ton for about three years. always wanted to do what you did. I'd by a beater and park the beauty when you can.

 

[Elevation]

make sure the mechanical advance is not stuck in the advacned position-happens alot on HEI distributor.

 

[mtn_extreme]

It does have an HEI distributor. It has that commercial rear end that has the 411 gears in it. At 65mph I am turning about 3400 in 4th gear. tranny is a 700r4 with shift kit.

Thanks for all the help, guess I need to familiarize myself with it more so I can fallow some of the comments

 

[switchback]

It does have an HEI distributor. It has that commercial rear end that has the 411 gears in it. At 65mph I am turning about 3400 in 4th gear. tranny is a 700r4 with shift kit.

Thanks for all the help, guess I need to familiarize myself with it more so I can fallow some of the comments

I was afraid of that. With those gears you'll pull anything but mileage. Put a set of 3:42's or something like that in there and you'll see a nice difference. Engine adjustments are going to do much till you do.

 

[mtn_extreme]

cannot change the gears on that 1 ton rear end, would have to change the whole axle

 

[Estevahn]

How much stall is in the torque converter?

 

[Skogen]

SWEET truck.

 

[Mafesto]

Nice truck.

Is ethanol available in your area?
It has a higher octane & more resistant to "pinging".

 

[snownman]

how about pistons

if you drive it a lot pull the engine and put some 9 or 9 1/2 comp. pistons in it, otherwise you spent good money building the truck so buy good gas