how much more whp can i make n/a on ls2 400whp
08-20-2018, 02:52 PM
#21
08-20-2018, 05:41 PM
#22
TECH Senior Member
08-20-2018, 05:52 PM
#25
TECH Senior Member
08-20-2018, 05:59 PM
#26
Same basic thread on external-engine only in that 450 rwhp was asked and G Atsma was and is correct about just sending them out being the heads for work @ TSP. Posted this on the 450rwhp thread:
No comment on am I on something .
No comment on am I on something .
TSP for the head work(larger intake valve as G has stated) good intake & TB with a decent header & your good. Get the compression around 11.0 or more( and do easy math we'll say your trans and rear end eats *100 Hp). You have a 6.0 bored over .075 which makes it a basic 6.2 just with 243's that need work and a intake/header. So is 550 to 580 hp @ the crank to HARD to get out of a 6.2 with factory ported 243's with :intake,cam and header? We Must Do easy math subtract *100 from our lowest number 550 = what?
We have your balance ready Sir:
Trick Flow® GenX® 220 cylinder heads with springs and valves run $885 each so x 2 = $1770 that's thru Summit (may need diff. springs). BTR build your own without parts are $1550.oo
Your heads done I've already rung you up @ the counter.
https://www.texas-speed.com/p-1172-p...-castings.aspx
Stage 2.5 (2.02"/1.57" Stainless Steel Valves)
- LS6/LS2 (243/799)
- TSP .660" Dual Valve Spring Kit Featuring PAC Valve Springs w/ Titanium Retainers
$1,199.99
This a basic stock Ls3 with cam that looks like yours
Cam 3:
Lift: .617 in/ .624 ex
Duration @ .050: 231 in/239 ex
LSA: 113
Idle vacuum: 17.1 in-Hg
PV Intake: .041
PV Ex: .098
Cranking compression: 200 psi
Peak Power: 566 hp @ 6,400 rpm
Peak Torque: 517 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500): 441.4 hp
Ave TQ (3,000-6,500): 485.4 lb-ft
Tq @ 4,000 RPM: 477 lb-ft
http://www.superchevy.com/how-to/eng...ick-boomerang/
460+ hp with a 5.3 with different stock ls heads again unported! You have a 6.2. just something to read over.
http://www.superchevy.com/how-to/eng...der-head-test/
We have your balance ready Sir:
Trick Flow® GenX® 220 cylinder heads with springs and valves run $885 each so x 2 = $1770 that's thru Summit (may need diff. springs). BTR build your own without parts are $1550.oo
Your heads done I've already rung you up @ the counter.
https://www.texas-speed.com/p-1172-p...-castings.aspx
Stage 2.5 (2.02"/1.57" Stainless Steel Valves)
- LS6/LS2 (243/799)
- TSP .660" Dual Valve Spring Kit Featuring PAC Valve Springs w/ Titanium Retainers
$1,199.99
This a basic stock Ls3 with cam that looks like yours
Cam 3:
Lift: .617 in/ .624 ex
Duration @ .050: 231 in/239 ex
LSA: 113
Idle vacuum: 17.1 in-Hg
PV Intake: .041
PV Ex: .098
Cranking compression: 200 psi
Peak Power: 566 hp @ 6,400 rpm
Peak Torque: 517 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500): 441.4 hp
Ave TQ (3,000-6,500): 485.4 lb-ft
Tq @ 4,000 RPM: 477 lb-ft
http://www.superchevy.com/how-to/eng...ick-boomerang/
460+ hp with a 5.3 with different stock ls heads again unported! You have a 6.2. just something to read over.
http://www.superchevy.com/how-to/eng...der-head-test/