Post your forged 347 builds here...
Thread Starter
Joined: May 2007
Posts: 2,793
Likes: 16
From: under a JEGS hat
Post your forged 347 builds here... Post your forged 347 build parts & dyno/track numbers... Looking to see what other people have done with their forged 347 builds. I'll start:
Shortblock:
'01 LS1 block, cylinder & line honed, deburred oil return areas.
Stock crank, polished/balanced
Diamond Racing -8.6cc dished pistons w/valve reliefs (Diamond 11503)
Pistons coated with heat rejection coating on top, anti-wear coating on sides
Total Seal piston rings (included w/pistons)
Lunati Pro Mod forged steel 6.125" connecting rods (Lunati LAE-1)
Clevite S & P bearings for crank/rods/camshaft
ARP main studs
ARP head studs
COMP custom cam 218/230 .605/.605 115+2 XFI lobes
LS7 lifters
Top end:
Stock GM 241 cylinder heads milled 0.045"
0.051" compressed thickness MLS headgasket
Patriot .660" lift dual valve springs
COMP rocker arm trunnion upgrade for stock rocker arms
COMP hardened chromeoly pushrods
LS6 PCV system
Intake:
LS6 intake manifold
Ported/polished throttle body
SLP Smooth Bellows
Polished/descreened MAF
SLP Blackwing lid
98+ WS6 lower air box
No power numbers, as I haven't thrown a blower on it yet or gotten it dynotuned.
Shortblock:
'01 LS1 block, cylinder & line honed, deburred oil return areas.
Stock crank, polished/balanced
Diamond Racing -8.6cc dished pistons w/valve reliefs (Diamond 11503)
Pistons coated with heat rejection coating on top, anti-wear coating on sides
Total Seal piston rings (included w/pistons)
Lunati Pro Mod forged steel 6.125" connecting rods (Lunati LAE-1)
Clevite S & P bearings for crank/rods/camshaft
ARP main studs
ARP head studs
COMP custom cam 218/230 .605/.605 115+2 XFI lobes
LS7 lifters
Top end:
Stock GM 241 cylinder heads milled 0.045"
0.051" compressed thickness MLS headgasket
Patriot .660" lift dual valve springs
COMP rocker arm trunnion upgrade for stock rocker arms
COMP hardened chromeoly pushrods
LS6 PCV system
Intake:
LS6 intake manifold
Ported/polished throttle body
SLP Smooth Bellows
Polished/descreened MAF
SLP Blackwing lid
98+ WS6 lower air box
No power numbers, as I haven't thrown a blower on it yet or gotten it dynotuned.
Last edited by ZexGX; Feb 8, 2012 at 01:42 PM.
TECH Enthusiast
Joined: May 2010
Posts: 558
Likes: 1
Your build pretty much matches what I'm up to. So far I'm still in the parts accumulation stage for my CTS-V
LS6 block
Diamond -8.6cc pistons
Compstar rods
LS9 head gaskets
Stock heads cleaned up, patriot gold springs
LS6 cam
ARP studs
On3 76mm .96 turbo going in the rear, probably pushing 15-18lbs when I'm done.
I'm also looking for what people have made on similar setups.
LS6 block
Diamond -8.6cc pistons
Compstar rods
LS9 head gaskets
Stock heads cleaned up, patriot gold springs
LS6 cam
ARP studs
On3 76mm .96 turbo going in the rear, probably pushing 15-18lbs when I'm done.
I'm also looking for what people have made on similar setups.
Almost finished with mine, just need a few items, im looking to make about 750rwhp, on how ever much boost it takes to get there, shooting for 10s or better.
Bottom end:
Iron 5.3 block, bored out.
Wiseco 3.905 forged pistons
Forged 6.125 oliver billet steel rods.
Stock crank.
Total seal rings.
ARP main studs
Clevite bearings, rods, mains, cam.
Jegs f-body balancer
Top end:
SLP oil pump
ARP Head studs
Rollmaster double roller timing chain
Custom FTI cam, received it today (612 612lift 230-140 dur, 116 lsa)
Stock 317 heads, mild valvejob
Stock lifters for now
Scorpion 1.7 rockers
0.075 ct Cometic MLS head gaskets
Edelbrock Pro-Flo intake
Undecided on throttle body
Turbo stuff
76mm, either a magnum turbo, or a precision
Tail wastegate
Big Red BOV
-4AN feed
-10AN return
truck manifolds down and forward (modified to fit my frame)
I think that is it lol
a freinds garrett 76mm for mockup
Bottom end:
Iron 5.3 block, bored out.
Wiseco 3.905 forged pistons
Forged 6.125 oliver billet steel rods.
Stock crank.
Total seal rings.
ARP main studs
Clevite bearings, rods, mains, cam.
Jegs f-body balancer
Top end:
SLP oil pump
ARP Head studs
Rollmaster double roller timing chain
Custom FTI cam, received it today (612 612lift 230-140 dur, 116 lsa)
Stock 317 heads, mild valvejob
Stock lifters for now
Scorpion 1.7 rockers
0.075 ct Cometic MLS head gaskets
Edelbrock Pro-Flo intake
Undecided on throttle body
Turbo stuff
76mm, either a magnum turbo, or a precision
Tail wastegate
Big Red BOV
-4AN feed
-10AN return
truck manifolds down and forward (modified to fit my frame)
I think that is it lol
a freinds garrett 76mm for mockup
Last edited by slownova73; Feb 8, 2012 at 10:33 AM. Reason: Addded cam specs
im curious to see what steam vent setups people are using, or if they are even using them. i plan on running one, and adding ls6 valley covers just for insurance, and to keep the temps down on those pesky ringlands. its very interesting after you have read about it some.
Almost finished with mine, just need a few items, im looking to make about 750rwhp, on how ever much boost it takes to get there, shooting for 10s or better.
Bottom end:
Iron 5.3 block, bored out.
Wiseco 3.905 forged pistons
Forged 6.125 oliver billet steel rods.
Stock crank.
Total seal rings.
ARP main studs
Clevite bearings, rods, mains, cam.
Jegs f-body balancer
Top end:
SLP oil pump
ARP Head studs
Rollmaster double roller timing chain
Custom FTI cam, should be here this week i hope
Stock 317 heads, mild valvejob
Stock lifters for now
Scorpion 1.7 rockers
0.075 ct Cometic MLS head gaskets
Edelbrock Pro-Flo intake
Undecided on throttle body
Turbo stuff
76mm, either a magnum turbo, or a precision
Tail wastegate
Big Red BOV
-4AN feed
-10AN return
truck manifolds down and forward (modified to fit my frame)
I think that is it lol
a freinds garrett 76mm for mockup
Bottom end:
Iron 5.3 block, bored out.
Wiseco 3.905 forged pistons
Forged 6.125 oliver billet steel rods.
Stock crank.
Total seal rings.
ARP main studs
Clevite bearings, rods, mains, cam.
Jegs f-body balancer
Top end:
SLP oil pump
ARP Head studs
Rollmaster double roller timing chain
Custom FTI cam, should be here this week i hope
Stock 317 heads, mild valvejob
Stock lifters for now
Scorpion 1.7 rockers
0.075 ct Cometic MLS head gaskets
Edelbrock Pro-Flo intake
Undecided on throttle body
Turbo stuff
76mm, either a magnum turbo, or a precision
Tail wastegate
Big Red BOV
-4AN feed
-10AN return
truck manifolds down and forward (modified to fit my frame)
I think that is it lol
a freinds garrett 76mm for mockup
well, so far i have bought everything for the bottom end, including the junkyard 5.3. pistons and rods,heads, everything i bought came from this forums classifieds lol minus the camshaft and intake and a few odd n ends.
My shortblock cost me:
5.3 engine-500$
wiseco forged Pistons-350$
oliver billet steel rods- 450$ (one rod was .10 out of round, it got to hot, had to get a replacement rod)
Replacement rod^^ 150$
take that right there, 1450$, i dont think thats too bad really, for a tough *** bottom end!
So far, ive spent 5800$ over the course of one year, which isnt bad i dont think! Including 90% of my engine parts, and transmission stuff, and actual vehicle parts.
My shortblock cost me:
5.3 engine-500$
wiseco forged Pistons-350$
oliver billet steel rods- 450$ (one rod was .10 out of round, it got to hot, had to get a replacement rod)
Replacement rod^^ 150$
take that right there, 1450$, i dont think thats too bad really, for a tough *** bottom end!
So far, ive spent 5800$ over the course of one year, which isnt bad i dont think! Including 90% of my engine parts, and transmission stuff, and actual vehicle parts.
Last edited by slownova73; Feb 8, 2012 at 10:32 AM.
Trending Topics
01 C5 ZO6
Build 347ci LS6 9:5 comp
Stock 241 heads.
Brute Speed cam
LS6 Intake & stock TB.
RPM transmission
Ram twin disc.
3.42 gears
Custom build turbo kit ST80 83turbine 1.15A/R 3.5' Downpipe to stock TI catback.
RSI Fuel system dual DW301 pumps.
83lbs injectors.
Dynoed on 10psi with stock catback/heads/intake/tb 598rwhp 559rwtq
91octane SAE on dynojet conservtive tune on heavy 345-30-19 NTO5-R
I just recieved another build 347ci with Ported AFR225 heads and changed the catback from stock to XSPower 3'inch catback...
Looking for 750rwhp on pump gas & 900+rwhp on race gas.
Hopfully dyno by the end of the month...
Build 347ci LS6 9:5 comp
Stock 241 heads.
Brute Speed cam
LS6 Intake & stock TB.
RPM transmission
Ram twin disc.
3.42 gears
Custom build turbo kit ST80 83turbine 1.15A/R 3.5' Downpipe to stock TI catback.
RSI Fuel system dual DW301 pumps.
83lbs injectors.
Dynoed on 10psi with stock catback/heads/intake/tb 598rwhp 559rwtq
91octane SAE on dynojet conservtive tune on heavy 345-30-19 NTO5-R
I just recieved another build 347ci with Ported AFR225 heads and changed the catback from stock to XSPower 3'inch catback...
Looking for 750rwhp on pump gas & 900+rwhp on race gas.
Hopfully dyno by the end of the month...
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Shortblock
'98 block cylinder and line honed
Stock main bolts
Stock crank out of a 2002 LS1 (spun the crap out of mine)
Diamond -9.6cc pistons
Scat I-Beam rods with ARP 2000 bolts
Clevite main and rod bearings
Total seal rings
LS7 lifters
Melling oil pump
LS2 timing chain
Valvetrain
PAC springs
TSP hardened pushrods
241 heads
COMP trunion upgrade
PCV system delete (running 2 lines from covers to catch can, and a check valved line from can to exhaust for vacuum)
Stock GM MLS head gaskets
Turbo is going on right now. Broke the motor in for about 1600 miles this past summer and it is running well. The drop in compression hurt the power a little bit, but 12 PSI should make up for that
'98 block cylinder and line honed
Stock main bolts
Stock crank out of a 2002 LS1 (spun the crap out of mine)
Diamond -9.6cc pistons
Scat I-Beam rods with ARP 2000 bolts
Clevite main and rod bearings
Total seal rings
LS7 lifters
Melling oil pump
LS2 timing chain
Valvetrain
PAC springs
TSP hardened pushrods
241 heads
COMP trunion upgrade
PCV system delete (running 2 lines from covers to catch can, and a check valved line from can to exhaust for vacuum)
Stock GM MLS head gaskets
Turbo is going on right now. Broke the motor in for about 1600 miles this past summer and it is running well. The drop in compression hurt the power a little bit, but 12 PSI should make up for that
Haven't started on mine yet, but:
LS1 block
Diamond flat tops
Compstar H-beams
Total seal rings
Clevite bearings
Stock crank
Melling oil pump
ARP 2000 rod bolts
ARP head bolts
Cometic head gaskets
243's
LS6 PCV system
Patriot dual gold valvesprings
EPS custom grind
LS2 chain
LS2 lifter trays
LS7 lifters
Comp pushrods
Comp trunion upgrade
FAST 90mm intake
FAST 92mm TB
FAST 36 lb injectors
Black Label fuel rails
LPP longtubes
LS1 block
Diamond flat tops
Compstar H-beams
Total seal rings
Clevite bearings
Stock crank
Melling oil pump
ARP 2000 rod bolts
ARP head bolts
Cometic head gaskets
243's
LS6 PCV system
Patriot dual gold valvesprings
EPS custom grind
LS2 chain
LS2 lifter trays
LS7 lifters
Comp pushrods
Comp trunion upgrade
FAST 90mm intake
FAST 92mm TB
FAST 36 lb injectors
Black Label fuel rails
LPP longtubes
Mine:
'02 LS6 block( line honed)
'02 stock crank(polished)
ARP Main studs
Scat h-beam rods w/ ARP 2000 rod bolts
Diamond dished pistons (-8.6cc 11503)
total seal rings Stainless top Napier 2nd
Custom cam
LS2 timing chain
Lingenfelter hi flow oil pump
LS7 Lifters
Ls9 gaskets
ARP head studs
Patriot stg 2.5 5.3ltr heads(hopefully selling soon for some tfs225 or AFR alike)
trunion
hardened pushrods(7.375)
Forced induction(almost done)
ST80 truck mani build, a2a intercooler, the works
Looking for a easy 800whp but mainly interested in 9's
'02 LS6 block( line honed)
'02 stock crank(polished)
ARP Main studs
Scat h-beam rods w/ ARP 2000 rod bolts
Diamond dished pistons (-8.6cc 11503)
total seal rings Stainless top Napier 2nd
Custom cam
LS2 timing chain
Lingenfelter hi flow oil pump
LS7 Lifters
Ls9 gaskets
ARP head studs
Patriot stg 2.5 5.3ltr heads(hopefully selling soon for some tfs225 or AFR alike)
trunion
hardened pushrods(7.375)
Forced induction(almost done)
ST80 truck mani build, a2a intercooler, the works
Looking for a easy 800whp but mainly interested in 9's
347!! mine is a built 5.3!
5.3 bored to 3.905
Mahle flat top pistons
Arp through out
Clevite main and rod bearings
Stock crank
Comp timing chain
243 heads port and polish
Brian tooley racing springs & retainers
Comp push rods
Comp cam
Ls7 lifters
GM mls head gaskets
Edelbrock performer ls1 intake
Holley 750dp carb
MSD 6ls ingition
Ls2 valley cover
l99 water pump
l99 power steering pump
proform coil relocation kit
ls3 coils
Aeromotive fuel regulator
Racetronix fuel pump
sl1 plastic gas tank
t56 trans
monster stage 3 clutch
racing innovation LT headders with full dual 3'' stainless exhaust magnaflow bullets
5.3 bored to 3.905
Mahle flat top pistons
Arp through out
Clevite main and rod bearings
Stock crank
Comp timing chain
243 heads port and polish
Brian tooley racing springs & retainers
Comp push rods
Comp cam
Ls7 lifters
GM mls head gaskets
Edelbrock performer ls1 intake
Holley 750dp carb
MSD 6ls ingition
Ls2 valley cover
l99 water pump
l99 power steering pump
proform coil relocation kit
ls3 coils
Aeromotive fuel regulator
Racetronix fuel pump
sl1 plastic gas tank
t56 trans
monster stage 3 clutch
racing innovation LT headders with full dual 3'' stainless exhaust magnaflow bullets
Major mods are in my sig less the forged 3.908 pistons. Running a t56 and 3.90 gears. Stock weight my car ran 12.11@119mph. Car should have an 11 in it with a good driver. Made 443rwhp on Bluecat's dyno.
None here yet, getting close to running though, I'm just gonna put mine on 20psi and let it eat till its had enough, I think reaching 700+ won't be a problem, I'll do whatever is necessary to get into the 9's, hell a 9.99 is good for me hah
On The Tree
Joined: Nov 2011
Posts: 173
Likes: 2
From: WI
Haha. I'm just worried once I get it on the dyno it will disappointed. Shop told me they will only use methanol/water injection as a cooler (idk of that's going to affect my goal) and right now 50/50 on a set of 317 heads I have or buying Prc 225cc heads..
Come on guys get in here and give some numbers. Hp/psi/et... any and all
Come on guys get in here and give some numbers. Hp/psi/et... any and all
