I wanted to use the Twisted Wedge 23 degree heads with the LPE cam 74219(219/219 .525/.525 w/1.5 112). Later I did plan on installing the superam intake but was wondering how this would work on my car now? Also would 1.25" valve springs be ok with this cam or should 1.47" be used?

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91 Camaro Z/28 5.7
SLP catback
SLP runners
SLP 1 5/8" headers
TPIS airfoil
160 degree thermostat
Rebuilt 700R4(borg warner/raybestos clutches,Kevlar band,vette servo)
B&M 2400 stall torque converter

 

I'm not to good with cams and heads but I think .500 is to much for a street car. Go under .500 but not too much. I would go like 480-490 but .525 is a little to much for a streeter.

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1990 G92 5spd LB9 - 3.42 80,000 miles

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch, Edelbrock TES Headers, Dual Cats, Edelbrock RPM Series Catback, Homemade Ram Air, Bosch +4 Platinum Plugs

14.4 @ 94mph w/2.0622 60ft (w/o headers and catback)

14.426 @ 96.19mph w/2.167 60ft(w/headers and catback)

Also newly modded w/o track times:

Holley AFPR, Underdrive Pulleys, KYB Shocks and Struts, Crane Ignition

 

im running a comp cams xtream energy in my daily driver 218-224 485" 503" runs good and is plent streetable

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91 Z28 slp headers adj reg accell cap rotor coil comp cam roller
random tech cats flowmaster catback
new motor in

 

I am running an LT-4 "Hot Cam" in my Camaro and drive it every day. I have put many freeway miles on it as well as around town, and it performs flawless in both areas. This cam runs .525 lift on the intake and exhaust. You can find the other mods that go along with it on my site, but I think it works great. I was running 2:77 gears with a 5 speed for about a year and a half and it was still fine. I recently changed to 3:70 gears and it is VERY nice to drive! Oh yeah, I can also pass California smog too.... 8^)

http://www.geocities.com/jasonsz28us/INDEX.htm


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1991 Camaro RS/Z28,polished TPI, 355ci. Sportsman 11 heads, LT-4 Hot cam,Pete Jackson gear drive, on,and on, and on... 13.4 @ 105.98 with a 2:77 rear, no traction, no tuning, no practice. Car is pictured in Chevy High Performance magazine, June 2000 issue.
http://www.geocities.com/jasonsz28us/INDEX.htm


1997 GMC Yukon, 4 wheel drive, leather, loaded, Gibson exhaust, K&N intake, Boston pro series speakers..... That's it so far.

1969 Camaro,12 point cage, total project right now, I am planning an LS1 - T56 - and a Vette independent rear. Pro Touring crowd, look out! 8^)

 

I appreciate the respones but no one has answered any of my questions.=)

 

Yes, you can run that set-up without any problems, the 74219 is a very streetable cam, go ahead and run the 1.6 rr for a .560/.560 lift. Its a great match with the Superram intake manifold.

I don't want to answer your spring question... I think it is a better question directed towards trick flow or LPE... call Trick Flow 1st and have your cam card in your hand when you call.

good luck
Todd


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85 Vette
383 SR Motor
11.55 @ 117
1.552 60 foot
http://corvetteforum.net/c4/beach_bum/

 

I have heard a lot of people say to go with the Trick Flow 23* heads instead of the G2s. I am running an LT4 HOT cam too with .498"/.498" lift with my 1.52 rockers and the car is nice to drive, not too much at all. I also have more duration than you do along with stock heads and runners, so that cam should be ideal. I would recomend you looking into the LT4 HOT Cam, its only $165 from www.gmpartsdirect.com, much less than the LPE cam plus its designed for the short runner engines, like you said you plan to have with the SR.

LT4 HOT Cam: 218*/228* duration @ .050" .492" lift.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Accel High Flow TPI Baseplate, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, Jet TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

Dan,

Do you have any examples of the GM Hotcam running strong #'s with a Superram ?

As a note, I believe the SR should probably be considered a long runnered intake set-up considering a stock TPI is 25" from plenum to valve seat... the SR is only 4" shorter, whereas an LT-1 or MR, are somewhere around 1/2 that.

Thanks
Todd

 

If you havew flat top pistons, you'll need to change them to a dished type to run the twisted wedge. The twisted wedge heads "twists" the combustion chamber in relation the the cylinders. With a high lift cam, and flat top pistons, the valves will hit the pistons.

 

I may have misread your post. You said "twisted wedge 23* heads." Are you running the twisted wedge or the 23* heads?
23* heads will work with flat top pistons, twisted wedge will not.

 

23 degree heads(twisted wedge brand)

 

Just for clarity, Trick Flow Specialties (TFS) is the manufacturer. The make both the G2 Twisted Wedge and the 23 Degree head. They are not the same thing. As Russ stated, special pistons are required to run high lift cams with the Twisted Wedges. As previously suggested, TFS is your best source for data on the appropriate valve springs. If it were my car I'd go with the 1.47" springs.

 

my dumb mistake =)

 

Who says you can't use flat top pistons with G2 heads. I have a 355 with G2 heads kb flat top pistons with valve releifs .029" head gaskets and the block is decked .125" for 11-1cr with .512 lift, works great.