stroked383z28

I recently finished up adding a set of TFS 220 as cast heads, along with some other goodies, to my car and thought I would share my results. The heads came from Brian Tooley and I couldn't be happier with them. The car drives like stock and makes great power. My car already had the cam in it, so I'll list my mods/results before and after installing the heads. This is on a stock bottom end LS2. All of the tuning has been done by Matt at 21st Century Muscle Car.

Previous Mods:
-Complete Z06 exhaust (manifolds to mufflers)
-Advanced Induction 230/238 cam
-Comp Cams 5/16" pushrods (7.425")
-Stock rocker arms
-Lingenfelter CAI
-Stock LS2 intake (lightly ported by myself)
-Stock throttle body
-Stock injectors
-Powerbond 25% underdrive balancer

427.5 rwhp / 386.7 rwtq

New Mods:
-Trick Flow 220 As Cast heads
--lightly ported by BTR
--milled to 61.5cc
--PM valve guides
--BTR valve springs
-GM LS2 head gaskets
-Kooks 1 7/8" headers with cats
-Z06 mufflers
-Advanced Induction 230/238 cam
-Manton 11/32" pushrods (7.500")
-Stock rocker arms w/ trunion upgrade
-LS7 lifters
-Lingenfelter CAI
-Fast 102 intake (port matched by myself)
-Stock throttle body
-LS7 injectors
-Powerbond 25% underdrive balancer

499.7 rwhp / 441.9 rwtq

I can't thank Brian Tooley and 21st CMC enough. The car is a lot of fun to drive. Hmmmm...I wonder what kind of numbers it would make with a cam optimized for these heads? It never ends.

0Josh@SpartanLSX

Congrats on the new power. Those are awesome numbers.

I think the TFS 220 in the right hands is one of the most potent cylinder heads on the market. Last year we did a set of Advanced Induction CNC'd 220's with a relatively small 230/236 camshaft and made 492/448 through GTO 4.11 gears. I'm very confident the car would've made 505-510rwhp through a stock gear set.

You made the right choice sir. Things come together nicely when a well thought out combo is put together.

C U IN REARVEIW

great results! I have been speaking with brian about a similar set up on my ls2. 220 heads (he will port),fast102 (ported and port matched by him) and a custom cam designed for my mods/goals. i would really like to see over 500whp,but a linear torque curve is the focus....so we will see! Any issues with surging/stalling?

stroked383z28

No issues with surging or stalling. Runs nice and smooth on the highway at 1500 rpm.

Redrocket1045

Great LS2 numbers BTW.
Auto or stick?
Dynojet or Mustang Dyno?

stroked383z28

Stick and Dynojet

AIR_RAM

Wow... Those are impressive numbers!!!

SPEED SAFE, AIR RAM

C U IN REARVEIW

cant wait to get the ball rolling on my similar build....very inspiring!!!

PRE-Z06

Nice numbers, assume they are SAE correct? I don't think that is a bad cam for those heads just not max effort, but curious why it was chosen with the stock heads and LS7 manifolds originally?

stroked383z28

Yes, the numbers are SAE. I'm a bit ignorant when it comes to cam selection so I rely a lot on what someone else recommends. At the time AI was one of the only places I trusted so I just went with what they recommended. I'd like to know what kind of gains could be had with a cam that is more tailored to my combination without getting too large. I like the driveability of the car.

PRE-Z06

You're leaving a little power on the table up top, but the minimal gains from a larger cam probably wouldn't be worth the trade off in driveability as it sounds like it suits you.

Gering

Congrats on your new found power!

peter pan

Awesome NA results

Amwellls1

Nice numbers

C U IN REARVEIW

need a sound clip!

stroked383z28

stroked383z28

C U IN REARVEIW

Good looking Dyno sheet.....sounds great!!!

stroked383z28

Does anybody think I would gain anything by having the stock LS2 throttle body ported?

C U IN REARVEIW

I would have your fast intake ported,makes a good differance in power under the curve.