87 GN 5.3 swap

Jemorgan

Member
I picked up a very clean 87 GN and after a spun rod bearing and the second 200R4 I decided to go LS , I picked up a 90k 06 5.3 Truck motor , planning on head studs , ls9 head gaskets , ls6 cam and ls6 springs . CTSV oil pan . Then adding a 76 mm turbo and the fuel system to support E85 . The trans will be a 06 4L80e . I'm shooting for 600ish hp and keeping AC . This will mainly be a Sunday nice day cruiser . Going for the pro touring look so me and my son can enjoy . Can't wait to get this all going
 

Attachments

blackbuick1987

New Member
Tick Performance sells the exact or close to the same spring set. I have this set in my heads and it is a very nice well put together kit. The shop that ported my heads installed these for me and they were very impressed with the quality.
 

Jemorgan

Member
Tick Performance sells the exact or close to the same spring set. I have this set in my heads and it is a very nice well put together kit. The shop that ported my heads installed these for me and they were very impressed with the quality.
I will check them out , thanks
 

Jemorgan

Member
Anyone suggest changing the rod bolts ? In doing ARP head studs but are the stock rod bolts good for 600ish whp or should I go ahead and replace since I'm pulling pan to install the CTSV pan ?
 

bigmandengo

Active Member
Stick with the stock rod bolts. From what I've read, the rods will bend before the bolts are an issue. Many, also suggest resizing the rods for arp bolts. So in my opinion, bolts are a waste on stock rods.
 

Jemorgan

Member
Should have parts coming in anyday . LS9 cam , LS9 head gaskets , ARP head studs , Pac Valve Springs and Hooker LS motor mounts
 
Top