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Kirkham Motorsports

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  #1 (permalink)  
Old 03-31-2008, 03:14 PM
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Default hyd cam for 428

Looking for some help on a hyd flat tappet cam for a 428. I had been thinking about using a comp 282s but would like to find a hyd cam (maybe equal) for my build:
428 .40 over
10.4 comp
C4 heads, cj valves, ported & polished , heads flowed: 277 in, 193 ex @.600
not sure on intake...i have a c3 2x4 w/ 600 carbs (listed for sale on site) and will use if it doesn't sell. So whats the favorite hyd cam ??

Jon
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Old 03-31-2008, 05:30 PM
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I'm using a Comp Cams 270 H w/750 Holly vacuum secondary on an Edelbrock Performer RPM and 10.0:1 compression ratio, somewhat mild but for good street manners. I'm looking for a dependable engine that will run good all day long and in traffic.
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Old 04-01-2008, 06:12 AM
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Default How about a small hydro roller camshaft??

Saltshaker Jon any chance of talking you into a small hydro roller camshaft? KCR has a small one in the .550"-.570" They are all custom grinds. You have the right compression for them. If I can't talk you into a roller, the crane 501-533 is a great low end torque cam. I ran one for 5 years in a 452 motor. 368 hp and 448ft of torque with 9.2 compression and some mild head work. Car would run 12.5 at 108 in the 1/4 mile with a 3.31 rearend. Idle all day with a glass of water on the air cleaner and not lose a drop. I went up 1 size to the .533-563" hydro cam, little more power and a little lope in the motor. Stronger mid range. I went to a stroker 482 from Barry R. and the smaller hydro roller cam from crane the .587-.607" I have not had a chance to get the car on the dyno for the final tuneup but real numbers I am guessing is 470-480HP and 560-570ft of torque. I also have a KCR custom roller for my other motor,498 with a 633-633" lift. Hope to get this motor done over the summer. Here's the thing, IMO and if you have a hydro lifter block and the problems with the changes of the motor oil and needing additives, most motors of today are running roller lifters. I would tell you that this is the way to go, IMO. You didn't say what you where going to use the car for, cruising,shows, autocross, roadracing, sunday cruising??. 1 more note, I retard my cams 6 degrees, there is a 4 degree built into the camshaft, this makes for torque in the lower rpms and only gives up a little HP in the top end. Chaplin just got his motor back with a roller cam, send a private e-mail and ask about how he likes it now. Rick L.
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Old 04-01-2008, 09:17 AM
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Ohhhhhh... Rick, there you go with dem "hydros" again.. sic 'em Ernie..

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Old 04-01-2008, 10:40 AM
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Quote:
Originally Posted by RICK LAKE View Post
Saltshaker Jon any chance of talking you into a small hydro roller camshaft? KCR has a small one in the .550"-.570" They are all custom grinds. You have the right compression for them. If I can't talk you into a roller, the crane 501-533 is a great low end torque cam. I ran one for 5 years in a 452 motor. 368 hp and 448ft of torque with 9.2 compression and some mild head work. Car would run 12.5 at 108 in the 1/4 mile with a 3.31 rearend. Idle all day with a glass of water on the air cleaner and not lose a drop. I went up 1 size to the .533-563" hydro cam, little more power and a little lope in the motor. Stronger mid range. I went to a stroker 482 from Barry R. and the smaller hydro roller cam from crane the .587-.607" I have not had a chance to get the car on the dyno for the final tuneup but real numbers I am guessing is 470-480HP and 560-570ft of torque. I also have a KCR custom roller for my other motor,498 with a 633-633" lift. Hope to get this motor done over the summer. Here's the thing, IMO and if you have a hydro lifter block and the problems with the changes of the motor oil and needing additives, most motors of today are running roller lifters. I would tell you that this is the way to go, IMO. You didn't say what you where going to use the car for, cruising,shows, autocross, roadracing, sunday cruising??. 1 more note, I retard my cams 6 degrees, there is a 4 degree built into the camshaft, this makes for torque in the lower rpms and only gives up a little HP in the top end. Chaplin just got his motor back with a roller cam, send a private e-mail and ask about how he likes it now. Rick L.
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Old 04-01-2008, 11:19 AM
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I had a nice 571 lift comp cams with 248 dur that I absolutely loved. In fact I think I may go back to it next time I tear my engine down. That set up made a ton of hp and torque. Oh yea, I run solid lifters with all my engines.

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Old 04-01-2008, 11:26 AM
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Default I'm starting to not like you UNDY

Undy Leave Ernie out of this.He is happy and warm drinking his pineapple smooooothie His car runs good and is only .2 slower that it was with the hot motor. He is also getting over 10 mpg. Just trying to help CONVERT a lost soul. Hydro are the way to go for street cars. Rick L.
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