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12-08-2007, 05:45 PM
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#1
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Join Date: Oct 2006
Posts: 929
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cam
ok so i have a new 305 for my iroc, I was wondering if anyone had any recommendations for a cam. as far as i know the only difference with the motor from stock is high dome pistons and supposedly a stock 350 cam. But i have heard the engine run and it just doenst sound anything but stock. So i figured since the motor is in my nice warm garage easily accessible now is the time for a cam.
im looking for a slightly rough idle and/or low end torque, I know its a 305 and im not going to get much, im not looking for much just something that sounds like a v8.
the car has 3.27 gears, demon 650 carb, t5 and these are the heads: # 14014416
thanks
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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12-09-2007, 12:55 PM
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#2
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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do you have a hydraulic flat tappet or hydraulic roller block?
if it is flat tappet i would look at a comp cams extreme energy 268 or 274, if it is a roller i would suggest a stock LT1 or LT4 cam.
either way i would suggest throwing on new springs jsut to be safe. the comp cams can be ordered as a complete kit with everything you need to install the cam the right way.
good luck with it.
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12-09-2007, 07:22 PM
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#3
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Join Date: Oct 2006
Posts: 929
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oops left that out, its hydro flat tappet.
do i have to worry about piston clearance at all?
thanks
__________________
1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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12-10-2007, 12:58 PM
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#4
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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How much of a dome?
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12-10-2007, 10:39 PM
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#5
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Join Date: Oct 2006
Posts: 929
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dome, i dunno. cant be that much if its stock heads with 350 cam. i think the guy i got it from played that part up a little, if anything i think they are just flat tops. they are def aftermarket ones because when i had the oil pan off they looked aluminum, no real way of knowing tho.
I think the comp cams extreme energy 268 looks good. Im most likely going to go with that, i have been looking at it for a while and heard good things about it.
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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12-11-2007, 05:39 PM
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#6
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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Quote:
Originally Posted by Iroc-z86
I think the comp cams extreme energy 268 looks good. Im most likely going to go with that, i have been looking at it for a while and heard good things about it.
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PM Sent.....
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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12-21-2007, 10:42 AM
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#7
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Join Date: Oct 2006
Posts: 929
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ok, i have narrowed the cam search down to two cams. Comp cams CCA-12-238-2 or the xe 268 cam. I called comp cams and the recommended CCA-12-238-2 as most suitable for my application. It seems like it would be a good cam for the 305, i think the 268 might be a little much. And does anyone know the stock spring rate for the orange springs? i would like to use the stock springs...simply because they are brand new and so is everything on the head and i really dont feel like taking off the heads. Thanks
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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12-22-2007, 11:10 AM
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#8
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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Quote:
Originally Posted by Iroc-z86
ok, i have narrowed the cam search down to two cams. Comp cams CCA-12-238-2 or the xe 268 cam. I called comp cams and the recommended CCA-12-238-2 as most suitable for my application. It seems like it would be a good cam for the 305, i think the 268 might be a little much. And does anyone know the stock spring rate for the orange springs? i would like to use the stock springs...simply because they are brand new and so is everything on the head and i really dont feel like taking off the heads. Thanks
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Don't have to pull the heads for springs. I would probably get a set of springs rated for more lift. It would suck worse to have to change them later on after everything is back together
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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12-23-2007, 09:02 PM
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#9
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Join Date: Oct 2006
Posts: 929
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ah ok, yeah ive been thinking about it, it makes sense just to do it all at once, this way it doesnt void the warranty or anythin on the cam.
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1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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12-30-2007, 08:11 AM
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#10
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Join Date: Nov 2007
Location: Forked River
Posts: 154
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Quote:
Originally Posted by Iroc-z86
ok, i have narrowed the cam search down to two cams. Comp cams CCA-12-238-2 or the xe 268 cam. I called comp cams and the recommended CCA-12-238-2 as most suitable for my application. It seems like it would be a good cam for the 305, i think the 268 might be a little much. And does anyone know the stock spring rate for the orange springs? i would like to use the stock springs...simply because they are brand new and so is everything on the head and i really dont feel like taking off the heads. Thanks
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How does this cam compare to the one that came stock in the L69 HO engine?
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86 TransAm WS6 LG4 4BBL Hanlon T5
00 SS M6
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12-30-2007, 08:41 AM
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#11
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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1985 (L69 and LB9) Camshaft .403 int./.415 exh.
202 int./206 exh. Duration
114.5 LSA
Comp cams CCA-12-238-2
.462 int./.469 exh. Lift with Fac. Rocker Ratio
262 int./270 exh. Duration
110 LSA
__________________
2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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01-01-2008, 10:30 PM
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#12
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Join Date: Oct 2006
Posts: 929
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yeah it should be a good little motor when im done with it. unfortunately i dont have a lot of money laying around right now so its kinda on hold.
__________________
1986 IROC-Z - 305- .030 over, Voodoo cam, 113 vette heads, tpi, hedman torque steps, GMMG 3in catback, custom chip, t56, 3.27s 9 bolt, rest of the car is stock.
2011 Camaro - 2lt/rs red jewel tincoat, m6 - SOLD
2014 Camaro SS - bolt ons
1998 Jimmy - the beater
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