NEW MOTOR, Now what

[Eslhockey92g]

97 blazer Ls 4 door 4x4

Its still in the air Jasper or GM long block but ither way im getting a new motor, and before it goes in i want to have everything i wanna do to it, in there. I was thinking of a cam, but i dont wanna play w/ the internals of a new motor, I was going to do the

1.6 roller tips
Hypertech III
High flow cat

im gonna reuse
Flowmaster muffler
Throttle body blade mod
Cold air intake
I have a throttle body spacer but i dont think it will go on

My big question is the rest of the exhaust. I want to get headers for it, considering that its the weakest point for the intake and exhaust that im doing. I have a 2" body lift on it. I herd that headers wont Fit. I saw an OBX pair on ebay, and some on summit racing. they all say they fit the 4.3 4x4 but ive saw in other fourms that, it may hit the steering shaft and i would have to notch the shock braket. Does any one know if i will have a porblem with them. And if any one has them how well they work? Also if there is anything else i could think of thats mild to make this new motor run strong, esp long.

[BlazerLT]

No offense, but why are you getting a new engine for?

[Eslhockey92g]

Originally Posted by BlazerLT

No offense, but why are you getting a new engine for?

none taken. I have a spun bearing in the bottom end. If i would decied to fix it with a crank kit (new crank and bearings) I would want to make sure the block is ok and the heads rebuilt. From what i understand to get everything ripped apart and everything checked over for cracks and warpage. If i would put a little more money into it. I would have a Jasper motor installed in a fraction of the time for a little bit more money. I havnt pulled the trigger on a new motor v/s rebuilding mine. Im taking everything in to consideration before i do.

[BlazerLT]

Compare prices and see the difference.

[Eslhockey92g]

Originally Posted by BlazerLT

Compare prices and see the difference.

Used motor with 66k on it, Installed - 1750.00 USD
Jasper motor Installed - 2900.00 USD
Rebuilding my motor With all the checking 1850.00 USD

The jasper is the only one that comes with a warrenty

I called a dealership about all 3 ideas, they said less headach to go with a used motor.

My only concern is the life of the car. I was on the fench between buying a smaller car (focus, neon) But id would rather fix my car. So it will HAVE to last me though school with out an major problems around 5 years. The tranny was rebuilt last year. so with taking care of that i should be okay. I dont wanna get a used motor it and it die on me in 3-4 years and be SOL. for me to pay a little more money now, and not have the headach of dealing with it ever again is ok by me

[BlazerLT]

The thing is, you never know what you will get with the used motor.

when they are rebuilding it, are they rehoning the cylinders or just the crank and slapping it all back together?

[Eslhockey92g]

Originally Posted by BlazerLT

The thing is, you never know what you will get with the used motor.

when they are rebuilding it, are they rehoning the cylinders or just the crank and slapping it all back together?

I got ahold of two shops that bebuild, They actually told me they do a shitty job rebuilding motors. They just slap it together. No magnaflux, heat crack checking, honing nothing. I wasnt gonna go though that BS and have it last me 3 months. I pulled the tirgger on a JASPER motor 4 year 75000 mile warrenty if anything goes wrong they take care of parts and labor. Even if its gonna cost me a little more money. Ill be able to sleep a little better about it. As of upgrades im gonna do a full syentic oil and just a hypertech for now

[534BC]

I think that I would always prefer to r&r the same engine (unless changing specs or size) and taking the time to rebuild the existing engine with known problems and all the holes, accesories,options are all there so there's no mistake.

I don't know how these 4.3 are, but typically there are many versions of chevys,buicks, ect. engine shops sometimes do not even keep them straight.

[BlazerLT]

Originally Posted by 534BC

I think that I would always prefer to r&r the same engine (unless changing specs or size) and taking the time to rebuild the existing engine with known problems and all the holes, accesories,options are all there so there's no mistake.

I don't know how these 4.3 are, but typically there are many versions of chevys,buicks, ect. engine shops sometimes do not even keep them straight.

I wouldn't for the same money. I would get a new engine with a new warranty and be done with it.

Why wait two weeks when it can be done in a couple days for the same price. When you add up the costs of the parts and labor and rehoning and resetting everything properly, you will actually have a larger bill.

[Ultrashock]

I have a jasper engine in my blazer. Im very satisfied I have had absolutely no trouble with it.

[534BC]

Originally Posted by BlazerLT

I wouldn't for the same money. I would get a new engine with a new warranty and be done with it.

Why wait two weeks when it can be done in a couple days for the same price. When you add up the costs of the parts and labor and rehoning and resetting everything properly, you will actually have a larger bill.

Yes, brand new would be an excellent choice, far better than a "rebuilt" or a "remanned" if it was comparable cost.

[BlazerLT]

Originally Posted by 534BC

Yes, brand new would be an excellent choice, far better than a "rebuilt" or a "remanned" if it was comparable cost.

True, rebuilt engine are so prone to problems and I have yet to see one example of a rebuilt engine that was redone properly and problem-free.

[534BC]

I would expect any rebuilder to get away with as little cost as possible when rebuilding engines, anything that is reuseable adds to profit but can cause problems later if out of spec. The key to making money and having no service problems is experience in knowing what to get away with and has a lot to do with the application. At least a new one should be within specs. I tend to do thing way different than the average builder but have always purpose built engines for a specific app. Getting feedback over years and miles helps a lot.

[alblogg]

Originally Posted by Eslhockey92g

I got ahold of two shops that bebuild, They actually told me they do a shitty job rebuilding motors. They just slap it together. No magnaflux, heat crack checking, honing nothing. I wasnt gonna go though that BS and have it last me 3 months. I pulled the tirgger on a JASPER motor 4 year 75000 mile warrenty if anything goes wrong they take care of parts and labor. Even if its gonna cost me a little more money. Ill be able to sleep a little better about it. As of upgrades im gonna do a full syentic oil and just a hypertech for now

I don't know how Jasper is but the last engine I got was through NAPA. They had Jasper but the guy I was getting to put it liked these engines better. What I was getting around to I was going to do the swap myself but the warranty is no good unless it is installed by an approved installer. So you might need to check the fine print with Jasper.

[alblogg]

Originally Posted by 534BC

I would expect any rebuilder to get away with as little cost as possible when rebuilding engines, anything that is reuseable adds to profit but can cause problems later if out of spec. The key to making money and having no service problems is experience in knowing what to get away with and has a lot to do with the application. At least a new one should be within specs. I tend to do thing way different than the average builder but have always purpose built engines for a specific app. Getting feedback over years and miles helps a lot.

Sears and Roebucks or Sears as everyone knows them today use to sell engines back in the '60-'70. You could order them out of the catalog. I rebuilt one of these engines one time a Ford 312 truck and what I found was amazing. On the crank two of the mains had been turned one rod one size two another size and here is the boom it had one .030 over piston on the left side. They only fixed what needed fixed and shipped 'em out.