Why stay with a 465? Especially with boost .. Slow to shift why not go m22/21 and a doubler?? You don't need Od so a nv4500 would be a waste?? You got me on he boosted title I clicked right on it.
CK5
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rcfatcats 78k5- Boostedk5 2.0
- Thread starter rcfatcat
- Start date
forgot to mention my final setup plans for the motor.
stock 5.3(no change in the bottom end and stock cam) this way it runs like a stock 5.3 off boost. good for crawling and idling around.
80lb injectors
pac 1218 valve springs.
arp headbolts (not studs) only going to be pushing 10lbs of boost so studs would just be overkill.
ON3 turbo (ebay) 76mm .80 ar cold side .96 ar hot side, t4 flange
turbonetics 50mm wastegate with a 10psi spring.
flipping the truck manifolds forward and building my own up pipes with 2.5 inch exhaust tubing.
turbo mounted on the passenger side of the motor towards the front of the head.
running the stock truck intake with egr delete.
truck will be dyno tuned using hptuners on the stock pcm.
ill be stripping the harness of anything not needed.
this style setup has gotten alot of guys in the high 400 low 500 hp range. more than enough for what i want out of this truck. (rock crawling, street-ability, mud bogs, tough truck)
i was asked by some of my local buddies why turbo. why not build a small block.
My reason:
with this setup i get a completely tame engine with already a decent step up in power from my 350. good for crawling and drive-ability in general.
add the turbo and i get a significant power increase in the high end and more than enough torque for this truck. but yet retains the characteristics of a stock 5.3 off of boost.
if i where to build a 350 to those power levels
a. id be spending the same if not more money.
b. id have twice the amount of fuel consumption
c. i loose the crawl-ability with the cam and head work needed to build that kind of power. i idle my truck through a decent amount of obstacles and trying to idle it with a big cam wouldn't work too well.
finally.... turbo-ed 5.3 78 blazer rock crawler...... it would just be plain fun to drive. im super excited to see how it turns out! going to be a learning experience for sure and im sure ill run into a bunch of roadblocks and kinks that will need to be worked out but thats all in the fun!
i know some of you will disagree with my thinking but it is what it is.
stay tuned as im tearing down the top end of the 5.3 this weekend and will be beginning the up-pipe fab.
stock 5.3(no change in the bottom end and stock cam) this way it runs like a stock 5.3 off boost. good for crawling and idling around.
80lb injectors
pac 1218 valve springs.
arp headbolts (not studs) only going to be pushing 10lbs of boost so studs would just be overkill.
ON3 turbo (ebay) 76mm .80 ar cold side .96 ar hot side, t4 flange
turbonetics 50mm wastegate with a 10psi spring.
flipping the truck manifolds forward and building my own up pipes with 2.5 inch exhaust tubing.
turbo mounted on the passenger side of the motor towards the front of the head.
running the stock truck intake with egr delete.
truck will be dyno tuned using hptuners on the stock pcm.
ill be stripping the harness of anything not needed.
this style setup has gotten alot of guys in the high 400 low 500 hp range. more than enough for what i want out of this truck. (rock crawling, street-ability, mud bogs, tough truck)
i was asked by some of my local buddies why turbo. why not build a small block.
My reason:
with this setup i get a completely tame engine with already a decent step up in power from my 350. good for crawling and drive-ability in general.
add the turbo and i get a significant power increase in the high end and more than enough torque for this truck. but yet retains the characteristics of a stock 5.3 off of boost.
if i where to build a 350 to those power levels
a. id be spending the same if not more money.
b. id have twice the amount of fuel consumption
c. i loose the crawl-ability with the cam and head work needed to build that kind of power. i idle my truck through a decent amount of obstacles and trying to idle it with a big cam wouldn't work too well.
finally.... turbo-ed 5.3 78 blazer rock crawler...... it would just be plain fun to drive. im super excited to see how it turns out! going to be a learning experience for sure and im sure ill run into a bunch of roadblocks and kinks that will need to be worked out but thats all in the fun!
i know some of you will disagree with my thinking but it is what it is.
stay tuned as im tearing down the top end of the 5.3 this weekend and will be beginning the up-pipe fab.
main reason is the 6.55:1 first gear. this truck is still a crawler and i can shift the 465 decently fast (ask those i wheel with) but i dont need to be able to shift as fast as i would be able to in an m21/22. for the type of wheeling and competeing i do time lost between shifts wont be a huge factor and lose of boost will be minimal due to the size turbo ill be running and how quick it spools. if it was built strictly for straight line mud drags or a type of competition where lose of time between shifts where a big factor id probably just swap to the 4l60e that was in the donor. or find a 4l80e.
Swap in the SM465/NP208.
Martin
Martin
I'm leaning that way. Any thoughts on the sye for the 208? Is it much different from an sye on a 231? I have experience with those. Can't find too much info on it on the net and I'm not too keen on running a slip yoke
People use the rear of factory Dodge NP208's.
Martin
Martin
Good to know. Found some info on this after you mentioned it. Gonna hit a few junkyards this weekend to see how hard it would be to try and source a dodge 208
86 F150 with the fixed yoke, same as the Dodge 208? Found a Ford 208 with the fixed yoke locally for $100. I may go grab for myself.
found a dodge 208 for a decent price on Craigslist I'm going to go pick up tomorrow. Seems the benefits of just swapping over to the 32 spline 465 with the 208 far out weigh trying to fix the setup currently in the truck. Hopefully the driveshaft lengths won't change too much but we will see
I know there are a couple threads on here documenting the 208 swap, but make sure to take pictures cause I'm right behind ya!
I'll be sure to take a lot on swapping the components from the dodge case to the Chevy. As far as mounting the 208 there won't be much as its already mounted to the 32 spline 465 I'm putting in. Going to have to set up a shifter too.
Oh, I've physically swapped way to many 208's lol
I don't need pictures of that.
I don't need pictures of that.
so went and picked up a dodge 208 saturday. going to pull it apart and use it to convert the chevy 208 im putting in to a fixed yoke.
the dodge 208
spent a few hours today tearing down the top end on the 5.3 with the help of two buddies.
the motor is in great shape. no sludge at all and good crosshatch in the cylinders. labeled the harness as i pulled it apart for when i got to weed out the non needed wires.
heads
only 3 broken exhaust bolts to try and get out. the exhaust manifolds will need some cleaning and the egr hole plugged. hoping to get the heads and block cleaned up tomorrow after work.
the dodge 208
spent a few hours today tearing down the top end on the 5.3 with the help of two buddies.
the motor is in great shape. no sludge at all and good crosshatch in the cylinders. labeled the harness as i pulled it apart for when i got to weed out the non needed wires.
heads
only 3 broken exhaust bolts to try and get out. the exhaust manifolds will need some cleaning and the egr hole plugged. hoping to get the heads and block cleaned up tomorrow after work.
Looks like a solid motor. Now get it in there!!!
You just cleaning it up yourself?
Yeah I'm not going to tear apart the bottom end. Will only drop the pan to replace the leaking pan gasket and drill a whole in it for the oil return from the turbo. I'll clean everything else, tape off, and paint the block and heads. Then back together with new GM performance mls head gaskets and arp head bolts. Also new intake and exhaust gaskets. This motor was well takin care of and I knew the owner. He was religious with his service schedule. The engine just turned 105,000 when he wrecked the truck.
Im just always curious on the proper way to clean up the head surfaces.
I had to change my head gaskets, but the thing only had a few thousand miles on it, so they weren't really dirty.
I had to change my head gaskets, but the thing only had a few thousand miles on it, so they weren't really dirty.
Razor blade.
Very sharp razor blade.
Martin
Very sharp razor blade.
Martin
Like Martin said I usually go with a razor blade to remove the bulk of left over gasket being careful not to gauge the head especially if it's aluminum. I then use this on the end of a die grinder and lightly clean off any leftover gasket material.
This style wizzie wheel won't remove any material from the head.
Cleaned head surface
Cleaned block surface
I have a couple broken exhaust bolts I have to remove which will be fun
This style wizzie wheel won't remove any material from the head.
Cleaned head surface
Cleaned block surface
I have a couple broken exhaust bolts I have to remove which will be fun
Cool. I need to pick up a few of those.
