5.3 swap question
i just got this flex plate by huges and stuff is that what you used?
here what they sent me


kinda dissaponted in this place they told me id get a belt with my under drive pulley and that did come, they said the flex plate and adapter was gonna be flat and the GM spacer which it isnt... i feel like returning everything and just using my stock flex with a spacer.
however... I would use F-body stuff. Keep in mind the Crank pulleys and accessories are different from trucks to F-body and corvettes.

Spacing varies on all these... basically corvette pulley system... be sure to get a corvette underdrive pulley. F-body pulley is slightly further out... more so with truck stuff.
I found out the hard way.
however... I would use F-body stuff. Keep in mind the Crank pulleys and accessories are different from trucks to F-body and corvettes.

Spacing varies on all these... basically corvette pulley system... be sure to get a corvette underdrive pulley. F-body pulley is slightly further out... more so with truck stuff.
I found out the hard way.

as far as the pulley goes. I picked up an under drive pulley for an c5 corvette. I want everything to be up close to the engine so i can have room to work if i need to. I got an F body water pump ( which i hear is the same as a corvettes) and now just needing the brackets. if the c6 are the same then i wouldnt have to worry...ill see how much hes asking then see if its worth the risk.
Just out of curisosity... i got this engine from a guy who pulled it form a 04 avalanche or something... i didnt hear it run...how would i make sure the engine isnt messed up?
as far as i can see visually no oil leaks any where all the gaskets and seals seem to be very good. Guy seemed very trust worthy but im being paranoid wanna know.
as far as the pulley goes. I picked up an under drive pulley for an c5 corvette. I want everything to be up close to the engine so i can have room to work if i need to. I got an F body water pump ( which i hear is the same as a corvettes) and now just needing the brackets. if the c6 are the same then i wouldnt have to worry...ill see how much hes asking then see if its worth the risk.
Just out of curisosity... i got this engine from a guy who pulled it form a 04 avalanche or something... i didnt hear it run...how would i make sure the engine isnt messed up?
as far as i can see visually no oil leaks any where all the gaskets and seals seem to be very good. Guy seemed very trust worthy but im being paranoid wanna know.
To check the engine- a compression test is a good start. You can rent the compression tester at any parts store.
Oil pressure is important also... not sure how to check that on a LS motor???
Old school motors (GENI) you could use a hand drill... to check oil pump.Careful with matching pulleys accessories water pumps and such from different cars.
And are you using a Corvette Bat wing pan? If so I can't help you there.
Oil pressure is important also... not sure how to check that on a LS motor???
Old school motors (GENI) you could use a hand drill... to check oil pump.Careful with matching pulleys accessories water pumps and such from different cars.
And are you using a Corvette Bat wing pan? If so I can't help you there.
i found an f body pan should be on its way soon. far as the accessory go only thing thats going to be fbody is the water pump.
ill give gm a call an ask if the brackets are inner changeable.
i know this might be a dumb question...but how do u use the ls1 adapter plates? im a little confused where they bolt up.
The Best of Corvette for Corvette Enthusiasts
do u put it on the block first? or on the mount? since i have my ls1 out of the car i was wanting to put it on as a test fit make sure everything is cool.
thanks for the reply!
After that is is just a matter of dropping the engine in using the standard axe and crowbar technique.
i was looking in to picking up a fuel rail engine cover for my engine. the corvette ones should just bolt up correct? or do they have to be a certain year?
Oh and i found this for those who live in the sacramento area and want to do a swap
http://sacramento.craigslist.org/pts/1687727973.html
They should all fit with your LS1 intake. It bolts to the coil pack... with trucks coils I m not sure if the holes are the same. But should be easy to adjust with a drill. :-)

I got the car all jacked up and drained of fluids. removed the headers( which is unbolted and refusing to come out..stupid long tubes.)

got my oil pan yesterday but no windage tray had to order that.

after cleaning, threw on a few (6) coats of black semi gloss paint.

and ended up pullin the oil pan waiting on my tray...

hopeful tm ill put the cam in...gotta youtube how its done to make sure i dont mess up.
today i pulled the old motor out... took 5 hours and a 24 pack of beer for me and my friend.
just need to clean up the old bay (clean and paint) then next week the new motor is going in. Im still not 100 percent sure how this adapter plates will work. ill post a pic of it later with the parts i got.
Last edited by 74batmobile; Apr 18, 2010 at 11:24 PM. Reason: edit
oh here is the progress so far.
ill pulled the engine on sunday

did not know the Toque converter was suppose to come out with the engine..
Last edited by 74batmobile; Apr 21, 2010 at 09:18 PM. Reason: delete
When puttung it back on, use the old bolt to make sure the pully is seated. Then use a new bolt and torque to spec.
BTW, you can unbolt the torque converter from the flexplate to prevent a few quarts of ATF from running all over the floor.
When puttung it back on, use the old bolt to make sure the pully is seated. Then use a new bolt and torque to spec.
BTW, you can unbolt the torque converter from the flexplate to prevent a few quarts of ATF from running all over the floor.
ive been using the old bolt but it seems like the puller bolt that you tighten down keeps slipping. im thinking im gonna have to drill a small dimple in the old bolt so it keeps place with out wondering.
I didnt know about the torque converter.
today im planing out smoothing out the engine bay and re painting it. i know some people use fiberglass and bondo what else are my choices? which works better?
now i have a question about the radiator will i be able to use my stock one? or should i go with an ls1 water pump? same goes with the electric fan do i just get a universal or use an ls1 fan.
The LQ water pump outlet will hiy the DBW TB on your LS1 intake. You'll need an LS1 WP.
As far as the fans, most people use duals. You've got several options. There is actually a pinout for electric fans on all the truck computers I've seen, even if the truck came without an electric. Just have it programmed to work.
There is a pinout for AC recirculation door that others have used for an additional fan.
On my aftermarket Vintage Air, I used a trinary switch to trigger the fan in addition to the computer fan pinout.










