Need a list of all parts needed to go with LS3 short block
02-15-2018, 07:05 PM
#1
On The Tree
Thread Starter
Need a list of all parts needed to go with LS3 short block My friend has an LS3 short block & heads. He is in need of a list of all parts he will need to make this complete & ready to drop in & run. Also, he is looking to buy an LSA blower so if anyone is selling, let me know. Going into a TBSS
Last edited by FlyinOn4Wheels; 02-16-2018 at 12:56 PM.
) check that forum.
02-16-2018, 12:22 PM
#3
+1 on needing more information. Without which we will have no idea of the specifics...
Are the heads off? Are they assembled with springs? He'll likely need a set of stock rockers and pushrods if he is not upgrading anything. But there is no better time to do it.
Regardless, he will need/could use:
-engine harness and PCM
-LS3 intake manifold with fuel rail and injectors (if going with EFI)
-TB (depends on application and PCM wether to use DBW or DBC)
-exhaust (depends on application)
-motor mounts (depends on application)
-engine accessories (water pump, alternator, AC compressor?, PS pump?, again depends on application)
Are the heads off? Are they assembled with springs? He'll likely need a set of stock rockers and pushrods if he is not upgrading anything. But there is no better time to do it.
Regardless, he will need/could use:
-engine harness and PCM
-LS3 intake manifold with fuel rail and injectors (if going with EFI)
-TB (depends on application and PCM wether to use DBW or DBC)
-exhaust (depends on application)
-motor mounts (depends on application)
-engine accessories (water pump, alternator, AC compressor?, PS pump?, again depends on application)
02-16-2018, 12:55 PM
#4
On The Tree
Thread Starter
02-16-2018, 01:21 PM
#5
If he's going with an LSA (BTW I'd swear I just saw someone on here selling a kit in the for sale section yesterday for like 4500) then that covers the top end.
I'm rusty on LS2s vs. LS1s but I think they are a 58x crank so you're fine there. Cam sensor is on the front cover too, and knock sensors in the block. I don't think there's much he'll need to change as far as the sensors and pcm go.
Exhaust should transfer as well as most of the accessories though I have zero experience with an LSA on a TBSS accessory drive.
I'm rusty on LS2s vs. LS1s but I think they are a 58x crank so you're fine there. Cam sensor is on the front cover too, and knock sensors in the block. I don't think there's much he'll need to change as far as the sensors and pcm go.
Exhaust should transfer as well as most of the accessories though I have zero experience with an LSA on a TBSS accessory drive.
02-16-2018, 01:22 PM
#6
In that case I think you'd just need an LS3 intake with fuel rail and injectors (if not going with the blower). You'll also need to use the LS3/L92 offset rockers if the heads don't have them. I believe everything else will swap over from the LS2 (TB, accessories, harness, exhaust, etc.). Hopefully someone more knowledgeable can confirm if I am overlooking anything or incorrect.
02-16-2018, 01:44 PM
#7
On The Tree
Thread Starter
In that case I think you'd just need an LS3 intake with fuel rail and injectors (if not going with the blower). You'll also need to use the LS3/L92 offset rockers if the heads don't have them. I believe everything else will swap over from the LS2 (TB, accessories, harness, exhaust, etc.). Hopefully someone more knowledgeable can confirm if I am overlooking anything or incorrect.
