98-LS1

iTrader: (4)

Camshaft Specification Card BACK TO LIST
Part Number: 10008 Grind Number: 282 H06
Engine Identification:
Start Yr. End Yr. Make Cyl Description
1957 1987 CHEVROLET 8 PERFORMANCE USAGE, GOOD MID-RANGE TORQUE AND HP, BRACKET RACING; STREET, HEAVY, ETC., AUTO TRANS W/3000+ CONVERTER, 9.5 TO 11.0 COMPRESSION RATIO ADVISED. BASIC RPM 2500-5500
Engine Size Configuration
262-400 C.I. V

Valve Setting: Intake .000 Exhaust .000 HOT

Lift: Intake @Cam 3134 @Valve 470 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 3134 @Valve 470
Rocker Arm Ratio 1.50

Cam Timing: TAPPET @---
Lift: Opens Closes ADV Duration
Intake --- --- 282 °
Exhaust --- --- 282 °

Spring Requirements: Triple Dual Outer Inner
Part Number 96802
Loads Closed 107 LBS @ 1.800 or 1 13/16
Open 280 LBS @ 1.350
Recommended RPM range with matching components
Minimum RPM 2400
Maximum RPM 6200
Valve Float 6800

Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 12.0 BTDC 34.0 ABDC 101 226 °
Exhaust 44.0 BBDC 2.0 ATDC 111 226 °


Would this be a good selection? The motor specs are listed below, this is my planned combo:

1.) 30 over 350 with Speed Pro forged flat top pistons
2.) Edelbrock Performer RPM Aluminum heads
3.) Edelbrock Air Gap intake
4.) Holley 4150 double pumper
5.) MSD HEI
6.) Harland Sharp Roller Rockers
7.) Cloyes Double roller timing set

I'm just shooting for some good all around power with a muscular sound, I'd like to have my third gen outrun my LS1 cammed Z-28. I think this 355 would handle it pretty well. Let me know what you think, thanks

1997bird

iTrader: (2)

Is your car a automatic? If so what size stall convertor? What gear ratio do you have? Car weight? I ask all of these things so that you can cam your car to the rest of your drivetrain and have an efficient combo.

joewee350

Your setup and that cam in a 3rd gen wont touch your cammed LS1. My cam is the XE 274 and it has more lift and duration and it is by no means a super mean sounding cam. It is a decent performer. I ran a 12.7@107 in a 3200lbs truck on street tires. Unless you plan on spraying it I dont think you are gonna take your LS1. I would go with something a little bigger. Something a little over 230 duration @.050 and a littler over .500 lift. Good luck.

WheelsUp84z

iTrader: (14)

yeah i agree with the above, that cam is WEAK, you're going to have to get a cam like he was suggesting, or put that motor in a 2500lb car... my old set up was much more potent that the one you spec'd in your post, and a cammed ls1 with a good tune and a decent driver could still give me some trouble..not so much anymore, but im guessing with that motor you want to build im spraying more nitrous that that car will make at the wheels lol

98-LS1

iTrader: (4)

O.k., here's my set-up. I've got a LT1 T-56, Fidanza flywheel, spec clutch, 4.10 gears, 4th gen aluminum driveshaft, LS1 rear end with Baer brakes up front. My goal is to outrun my LS1 Z-28. My LS1 is crazy fast though which is why I was wanting to put a good set of heads on my 355 along with a good cam. I called Crane and the dumbass mexican tech, couldn't understand a word he was saying, gave me specs for a small cam. It's a 459/486 218/230 on a 101 LSA, wouldn't this cam fall on it's face after about 5500 RPM's? I want a cam that pulls all the way to 6500 just like my Z-28 does but makes good low end torque as well. Thanks for the help guys!

joewee350

101 lsa??? It would chop like crazy if the lsa was that tight. And yes, the power would fall off much lower than 6500. I would say closer to 5000. When you say your cammed ls1 is crazy fast...what does it run exactly? The cam I am in the process of putting in my truck is a .534/.534 lift and 245/245 duration @ .050 with an lsa of 108. I called several manufacturers and spoke with many people and they said it would be a great cam for my setup. 3500 stall needed and advertised power range is 2500-6500. It should be in within the next week so if you can hold off I can tell you how mean it really is.

98-LS1

iTrader: (4)

Well, my LS1 is crazy fast to me. It's the fastest car I've ever owned, before I installed the cam it ran a 12.7 at 108 mph at Bristol so it should be a low 12 second car now. I put BFG 315 DR's out back and the car will still roast them off from a dead stop. Don't hold me to that LSA but I'm almost certain he said 101, he was hispanic so I couldn't understand him. That seemed a little tight to me too, let me run this part number and make sure. I don't want to be shooting numbers out my ***! Let me know how your cam does, it'll be a couple weeks before I get my block back from the machine shop anyway.

1997bird

iTrader: (2)

This cam would help your car run very strong. The Comp part number is 12-661-47/HR284H-10, the Adv duration is 284/296 @.050" 240/246 lift is .507"/.510" on a 110* LSA & a 106* int centerline. I have had nothing but positive gains useing the 4-7 swap cams.