comp xe262h or xe268h? cant decide.

Discussion in 'High Performance Modifications' started by westonian, Jan 27, 2009.

  1. westonian

    westonian Member

    May 1, 2008
    Can't decide which is more appropriate for my set up.

    - Stock 79 LM1 350 Bottom End
    - Vortec Heads modified for high lift springs
    - 1.5 cheapy roller rockers
    - Eddy RPM airgap intake
    - th350 with 2200 stall
    - 3.42 posi

    Either way I'm doing a total top end swap with this cam and the above listed parts. Its my first major mechanical undertaking so I'm fairly nervous but excited.
  2. kenny77

    kenny77 Veteran Member Lifetime Gold Member

    Jul 31, 2001
    Ft. Lauderdale, FL
    You'll be even more "Excited" when you put in that Comp Cam and have so much valvetrain noise that you'll be wondering what you did wrong. Go on over to the Chevelle Forum and see how you can get one of Harolds Voodoo cams and make a better choice than the Comp stuff. I'm glad I did.

    Take it from me, Put a Lunati Voodoo in there to go with the high lift Vortecs......and you can forget about the noise.>>>>>>>>>>.Ken

    Last edited: Jan 27, 2009
  3. opso550

    opso550 Member

    Dec 6, 2008
    w monroe, la.
    I used a 262 comp in my 72 corvette 350. It has stock heads, Crane 1.6 roller rockers, an Edelbrock performer with a holley 650, and headers. Very mild, with just a small rough idle, but plenty of vacuum for the power brakes. Good performer for the street. It's an auto with a bit more converter than stock. It made the car a low 14 quarter, with 3.36 posi.
    I don't know what noise he's talking about. Mine has no valve train noise, and I've been running it for almost five years.
  4. Toomanyhobbys

    Toomanyhobbys Veteran Member Lifetime Gold Member

    Apr 12, 2005
    Mesa, AZ
    Yep agree, My 78 with a comp cam cam sounds like a chainsaw. My 80 with an Isky.. love it, 67 Firebird with a Crane.. love it. have heard great stuff about Lunati cams.
  5. westonian

    westonian Member

    May 1, 2008
    alright. well if thats the case, which voodoo cam should i go with?
  6. my24ktrat

    my24ktrat Veteran Member

    Jul 5, 2007
    Roch., NY
    ...The noise people are talking about is BS, had many CCXE cams in past vehicles ,including winter vehicles, no noise , running currently a CCXE268 in my 350 now in my 79 with GMFastBurn heads , runs really well , lumpy idle ,pulls nicely,also in my 400 in my 76 monte ,again NO noise, DC:bowtie:
  7. 70Camaro406

    70Camaro406 Veteran Member

    May 4, 2006
    Cadillac, MI
    I, too, am a believer and fan of Lunati cams. I have their solid roller #50103 in my 406 and love it. Here's a good suggestion for your motor:

    Voodoo Hyd Cam - Chevrolet Small Block 268/276

    Product Description

    Lunati's Voodoo series of Hydraulic camshafts deliver more area under the curve than any other series of Hydraulic camshafts. This means more throttle response, quicker acceleration, more vacuum, better efficiency, combined with maximum horsepower and torque!Hydraulic. The most awesome 268 cam ever produced! Out-powers all others! This High Performance street cam likes 2400 RPM stall, 700 cfm carb, dual plane intake and headers. Makes un-equaled power to 6200 RPM with proper valve springs. If you're looking for a Very Strong cam with great street manners then this cam is it.
    • Advertised Duration (Int/Exh): 268/276
    • Duration @ .050 (Int/Exh): 227/233
    • Gross Valve Lift (Int/Exh): .489/.504
    • LSA/ICL: 110/106
    • Valve Lash (Int/Exh): Hyd/Hyd
    • RPM Range: 1800-6200
    • Includes: Cam Only
    Part Number: 60103

    It's $109.95 from Summit

    Here's the link to Lunati's Voodoo lineup -
  8. EricsZ28

    EricsZ28 Veteran Member Lifetime Gold Member

    Feb 28, 2006
    Here and there...
    I have an XE274. I really can't say that it is all that noisey. I'm running hardened pushrods with guideplates and 1.5 ratio roller rockers.

    I took the time to measure the pushrod length & validate my valve geometry. The stock-length pushrods did not yield the correct geometry. IIRC, I didn't go with Comps recommendation either.

    With that said, I can't say that you won't be happier with one of the other choices be suggested. I'm just commenting on the noise levels... :cool:
  9. rs454

    rs454 Veteran Member

    Feb 15, 2001
    kutztown pa usa
    i ran the comp cams 268 in my 350 ..NO noise at all... nice "healthy idle" good vac..made good power..i always used comp complaints...
  10. hhott71

    hhott71 R.I.P 11/19/18 Lifetime Gold Member

    Mar 30, 2001
    Joplin Mo. 64801
    For the money savings and probably not giving up any power look at Crane Energizer cams. $120 with lifters.
    The .480" lift 228ยบ dur 284 Energizer will fill your bill.
    It'll work with 9:1 to 11:1 compression.

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