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#1
11-14-2003, 04:38 PM
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What's the best cam for a 428 w/race port heads(d port) Looking for torq and hp #s to 5800-6000rpm Thanks Larry
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#2
11-14-2003, 04:38 PM
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What's the best cam for a 428 w/race port heads(d port) Looking for torq and hp #s to 5800-6000rpm Thanks Larry
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#3
11-14-2003, 07:06 PM
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go with a solid.
1973 SD455 T/A 1979 S.E. T/A http://community.webshots.com/album/16587603rOyvmFCiHs
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Home of WFO Hyperformance Shaker induction. |
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#4
11-17-2003, 03:49 PM
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I have a 288/296 in my motor and I think it goes pretty dam well. I should br in the 12's next year when I get better tires. I also would go with a stall and rhodes lifters. I think when I make those improvements I predict I will make around 12.7 in the 1/4
ET 13.2 and spinning like a mother
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ET 12.504 MPH 107 3940 lbs |
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#5
11-17-2003, 03:54 PM
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A friend with a 428, stock #12 heads, cast iron intake, swap meet headers in a 70 TA ran 12.70-12.80s regularly using the UD 288/296.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#6
11-17-2003, 05:43 PM
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I've gotten a best of 12.60 @ 109 mph so far with a hydraulic 288/296 in my 462, 4 sp. combo, and there's more in her. I've heard of others doing much better. I like the cam quite a bit. I'm able to run power brakes too.
 http://home.earthlink.net/~uptons1/ <~~some pics of my 65 GTO
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_________________________ _________________________________ http://www.youtube.com/watch?v=_qZgOpn-w-o <<< Burnout Video  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Treat Me Good, I'll Treat You Better; Treat Me Bad, I'll Treat You Worse" Sonny Barger ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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#7
11-17-2003, 09:30 PM
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I ran the HO 03 cam in my '67 GTO...12.04 @ 114 MPH. 455 60 over, 4.250 stroke w/ 6.700 rods. Heads were #62 flowing 250 CFM with 1.65 Harlan Sharp roller rockers. Performer RPM w/ a Q-Jet. TH400 w/ 2700 stall and 3.90 gears. All steel car.
Dave "Big Injun" Anderson www.pontiacdragdays.com www.geetotiger.com 
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Dave "Big Injun" Anderson dave@4mypontiac.com www.4mypontiac.com For GTO Celebration items click the tile coaster. 
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#8
12-03-2003, 11:24 AM
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I noticed some of you guys with the 288/296 cams have the solid unit. Mine is the hydrolic one. How much does that cost me ET wise?
ET 13.2 and spinning like a mother
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ET 12.504 MPH 107 3940 lbs |
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#9
12-03-2003, 07:48 PM
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I used to run the cam in my 63 Tempest Wagon. 406 RPM intake 750 HP ported 16's, glide with a brake and a loose convertor. Race weight was 3250 w/driver. Best time was 11.54.
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#10
12-03-2003, 09:59 PM
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"Back in the olden days" I ran an HC-03 in a 400 in my 64 GTO. It had a 66 tri-power, 4.33 gears, M-22 4-speed and 1 3/4" headers. It ran 12.20 at 114.
http://www.jimspontiac.homestead.com/Index.html 
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#11
12-03-2003, 10:11 PM
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Frankly you don't provide enough info for which cam will best fit your application. Weight of vehicle, intended usage, stall, gears, short block components, transmission, carb, heads, compression, etc etc all are factored into which cam to select.
I have done two different versions of my HO 28 in my Bonne and my current cam is a CompCam 280h with ported #16's and 10.75 to 1 forged etc. It is a nice rumbler on idle not bad in low to mid but wakes up nicely mid to 5,800.
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1969 Black Bonneville convertible 428HO |
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#12
12-04-2003, 10:19 AM
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The 288/296 I'm talking about is their hydraulic not the solid. The solid is more agressive @ 0.050 than the hydraulic.
Harold is at extension 135 at Lunati for Ultradyne cams now. Just got a 296/304 hydraulic on the way myself on a 112 lobe sep. Goathead is running low 12s with his now.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#13
12-04-2003, 10:53 AM
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I ran the HC-03 cam for years. 455 +60, 197 HO Round Port heads, 3.31 gears, 26 x 10 x 15 slick, TH400, Q-jet, Performer RPM, HO Racing Tri Y Headers. This was in my '65 GTO that weighs about 3900 pounds with me in it. At Carlsbad Raceway in Carlsbad, CA the car ran 12.50's at 106-107 MPH. The cam had great idle and vacuume. I would recommend it.
BTW, it is my understanding that Ken Crocie now has a HC-03C cam that is an improvement. Ron 
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Due to the current economic conditions...the light at the end of the tunnel has been turned off. Meet you at the finish line.....don't be late! |
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#14
12-06-2003, 08:07 AM
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Ultradyne - 288/296.... 231 239.... .490 .510 110 LSA
Pontiac RAIV 308/320... 231 240.... .470 .470 114 LSA Both with 1.5 ratio rockers.Pretty similar huh? Did Pontiac know what they were doing 35 years ago or what? RAIV Don't leave home without it. www.kingofmusclecars.com
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http://www.stockappearingdrags.com http://www.stockappearingdrags.com Come on get off that lawn chair and drive that car like it was meant to be driven. 69' 400 RAIV Judge Conv... 12.86@107 Factory Stock 69' 400 RAIV Trans AM .....12.48@110 Factory Stock 69' 400 RAIV Judge HT..... 13.07@104 Factory Stock 73' 455 SD Trans AM........13's?? not run yet 66' 455 GTO Convert.........12.20@112 non original 63' 421 SD Catalina...........restored fast as h*ll |
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#15
12-06-2003, 01:30 PM
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...in comparison...
Ultradyne 288/296 SOLID 255/263 @.050", .540/.556" 1.5 ratio. 108 LSA 1973 SD455 T/A 1979 S.E. T/A http://community.webshots.com/album/16587603rOyvmFCiHs
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Home of WFO Hyperformance Shaker induction. |
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#16
12-06-2003, 02:06 PM
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Gonzo, The seat duration of the RAIV is what hinders it some especially in a 400. Same duration @ 0.050 but a bunch more seat duration and overlap. Most of the old factory cams for Pontiac as well as Chevy had slower ramps for easier loads on valvetrain.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#17
12-06-2003, 02:27 PM
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Were not the factory grinds advertised at something like .001-.002" tappet rise whereas most aftrmarket grinds use .006"?
who is your daddy? |
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#18
12-06-2003, 05:27 PM
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I agree Skip....todays profiles are definitely enhanced.
UD 288/296 72 degrees overlap RAIV 308/320 86 degrees overlap..or thereabouts As a side note, to find out overlap: Add the intake and exhaust adv durations Divide the results by 4 Subtract the LSA Multiply the results by 2 = overlap RAIV Don't leave home without it. www.kingofmusclecars.com
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http://www.stockappearingdrags.com http://www.stockappearingdrags.com Come on get off that lawn chair and drive that car like it was meant to be driven. 69' 400 RAIV Judge Conv... 12.86@107 Factory Stock 69' 400 RAIV Trans AM .....12.48@110 Factory Stock 69' 400 RAIV Judge HT..... 13.07@104 Factory Stock 73' 455 SD Trans AM........13's?? not run yet 66' 455 GTO Convert.........12.20@112 non original 63' 421 SD Catalina...........restored fast as h*ll |
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#19
12-06-2003, 10:27 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>BTW, it is my understanding that Ken Crocie now has a HC-03C cam that is an improvement. <HR></BLOCKQUOTE>
Ron....please elaborate on those improvements....or...... Ken??????????? 1973 SD455 T/A 1979 S.E. T/A http://community.webshots.com/album/16587603rOyvmFCiHs
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Home of WFO Hyperformance Shaker induction. |
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#20
12-07-2003, 12:38 AM
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I don't know the specs of the new HC-03. I hope Ken Crocie will read this and respond. I will also try to get ahold of him and make a reply.
Ron
__________________
Due to the current economic conditions...the light at the end of the tunnel has been turned off. Meet you at the finish line.....don't be late! |
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