95Noobie
OBS Enthusiast
I'm going to show my ignorance but is a 383 a bigger small block engine size option?
I'm thinking the work of replacing front and rear axle (sourcing the axle, probably used with the proper gears) and installing might be about as much work as getting the motor swapped? I have the 3.73 gears (GT4 on the RPO code) and it seems just about right for trying to squeak out a bit better highway mpg if the engine didn't lug. I assume if we did a 350 it would have a bit more power so that when your torque converter locked in the 'overdrive' situation the engine could more easily move it out of the lugging stage to the higher rpms without unlocking the torque converter to get some speed.
on paper the 350 horsepower rating vs the 305 is not much different but I'm hearing from all of you that it makes a big difference in real life. I think I need to find a truck with the 3.73 and the 350 and give it a test drive to see what difference it makes.
My 305 may be 'tired' or have some loss of compression. I have not checked compression on all 8 cylinders. I have just focused on fuel system, injection cleaning, getting sensors working, plugs, wires, general tuneup.
I have so much to learn. I saw a 1995 used truck that could be a donor but it had a 'rebuilt' 350 with terms I wasn't familiar with and with some type of turbo looking swoopy thing instead of the usual air cleaner as part of a cold air intake system and what looks to be a throttle body spacer. Would finding a way to get more air down into the lungs of my engine help? I'll attach the picture. (and below is the for sale ad which lingo you'all probably are familiar with)
================================
-Engine rebuilt at 189,000 miles
•RV cam•Edelbrock intake
•.030 over flat top pistons
•double roller timing chain
•high volume oil pump
•throttle body spacer
•cold air intake
•new starter
•new water pump
•new radiator
-Transmission rebuilt rebuilt at 189,000 miles•shift kit•high performance torque converter •Autometer trans temp gauge •heavy duty transmission cooler
-2019•10 bolt rear axle replaced with 14 bolt semi-floater. New bearings and seals.•rebuilt front and rear driveshafts •all new u-joints•New front wheel bearings
I'm thinking the work of replacing front and rear axle (sourcing the axle, probably used with the proper gears) and installing might be about as much work as getting the motor swapped? I have the 3.73 gears (GT4 on the RPO code) and it seems just about right for trying to squeak out a bit better highway mpg if the engine didn't lug. I assume if we did a 350 it would have a bit more power so that when your torque converter locked in the 'overdrive' situation the engine could more easily move it out of the lugging stage to the higher rpms without unlocking the torque converter to get some speed.
on paper the 350 horsepower rating vs the 305 is not much different but I'm hearing from all of you that it makes a big difference in real life. I think I need to find a truck with the 3.73 and the 350 and give it a test drive to see what difference it makes.
My 305 may be 'tired' or have some loss of compression. I have not checked compression on all 8 cylinders. I have just focused on fuel system, injection cleaning, getting sensors working, plugs, wires, general tuneup.
I have so much to learn. I saw a 1995 used truck that could be a donor but it had a 'rebuilt' 350 with terms I wasn't familiar with and with some type of turbo looking swoopy thing instead of the usual air cleaner as part of a cold air intake system and what looks to be a throttle body spacer. Would finding a way to get more air down into the lungs of my engine help? I'll attach the picture. (and below is the for sale ad which lingo you'all probably are familiar with)
================================
-Engine rebuilt at 189,000 miles
•RV cam•Edelbrock intake
•.030 over flat top pistons
•double roller timing chain
•high volume oil pump
•throttle body spacer
•cold air intake
•new starter
•new water pump
•new radiator
-Transmission rebuilt rebuilt at 189,000 miles•shift kit•high performance torque converter •Autometer trans temp gauge •heavy duty transmission cooler
-2019•10 bolt rear axle replaced with 14 bolt semi-floater. New bearings and seals.•rebuilt front and rear driveshafts •all new u-joints•New front wheel bearings
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