Official NBS 4.3v6 to GEN 3 V8 swap Guide

[banker099]

so it don't really matter too awful much where it goes?

i don't really feel like tapping into the pump itself, but i can do it to the reservoir->radiator hose or either of the heater hoses going to the firewall, right?

mine is in the coolant tank hose with a T fitting

You can see the plastic where it is supposed to go. I just don't want the AZ emissions to fail me or the engine to throw some code that it lost contact with the EGR or something because it is not plugged in

03 and up dont have EGR so just take it off and say its out of an 03 truck...

[Fadingglories]

My registration under the DMV is a 99 GMC I don't think they will care what I tell them because I have tried argueing with them about other stupid things. Just to be safe i thing i will find a different intake and swap them out.

[zebra]

mine is in the coolant tank hose with a T fitting...

so where'd you get a 1/2" to 1/4" T fitting?
i've tried most places in town & the best i can come up with is a $10-15 custom-made one, a 1/2" to 3/8" T and then add some 3/8" tubing with a 3/8" to 1/4" reducer, and a company who might actually have what i need but won't answer the telephone

[banker099]

i found it at oreallys by the lawn mower spark plugs...for some reason

mine mighta been a 1/2 to 7/16...it was a tight fit on the small hose....took quite a bit of elbow grease to get it to work...ill snap a pic at lunch

[fastlt1]

What kind of weight gain going from iron 4.3 to all iron 6.0?

[zebra]

i found it at oreallys by the lawn mower spark plugs...for some reason

mine mighta been a 1/2 to 7/16...it was a tight fit on the small hose....took quite a bit of elbow grease to get it to work...ill snap a pic at lunch

7/16??... that's almost a 1/2. was it a 5/16? if it was 7/16, i'll just use the 3/8 i have now

What kind of weight gain going from iron 4.3 to all iron 6.0?

i'm guessing not too awful much. the 4.3 weighs 435, i think, and the 5.3 (with aluminum heads) weighs 470. i'd figure, what, another 15-25 lbs for the iron heads & bigger pistons?

anybody else know the actual weight?

[banker099]

7/16??... that's almost a 1/2. was it a 5/16? if it was 7/16, i'll just use the 3/8 i have now



i'm guessing not too awful much. the 4.3 weighs 435, i think, and the 5.3 (with aluminum heads) weighs 470. i'd figure, what, another 15-25 lbs for the iron heads & bigger pistons?

anybody else know the actual weight?

oh it thought u were saying the right one was 3/8, so i was just assuming i had one that was one size too big cuz it was tight going on....

[DennisG_02Silverado]

i'm taping into one of the 3/4 hoses going to the firewall. using a T fitting into a 3/8, then reduce 3/8 into 5/16. Would that wrk ok i guess?

I"'m doing my swap the end of next week, hopefully i won't run into any problems

[zebra]

i'm taping into one of the 3/4 hoses going to the firewall. using a T fitting into a 3/8, then reduce 3/8 into 5/16. Would that wrk ok i guess?

I"'m doing my swap the end of next week, hopefully i won't run into any problems

i reckon that'd work. that's what i was about to do with the reservoir tank - T off to a 3/8 then reduce to 1/4, but i just didn't want to have that extra section of hose & 2 clamps to have to look at. when i was at the shop yesterday, i managed to man handle it enough to make the 1/4 hose fit on the 3/8 nipple, so i'm just gonna skip the reducer.

updates will be in my build thread after while...

[banker099]

i was about to do with the reservoir tank - T off to a 3/8 then reduce to 1/4, but i just didn't want to have that extra section of hose & 2 clamps to have to look at. when i was at the shop yesterday, i managed to man handle it enough to make the 1/4 hose fit on the 3/8 nipple, so i'm just gonna skip the reducer.

glad u got it to work...sorry for my laziness on getting pics, thats how mine started off...with 2 reducers till i found the right size, and yes it looks like straight dookey with 2 reducers on it