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Author Topic: Summit K1107  (Read 4422 times)

Offline Clintond

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Summit K1107
« on: February 08, 2010, 06:02:13 PM »
Has anyone ran this cam?  I'm putting it into my 75 C-10.  350, 9.5 CR, 190 64 cc heads, holley 3310, Performer RPM manifold, 2200 to 2600 stall, 3.73 gears 
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Offline eventhorizon66

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Re: Summit K1107
« Reply #1 on: February 08, 2010, 07:06:38 PM »
K1105 would be the biggest I'd go with a static cr of 9.5:1.  Be sure to degree the cam in at 4 advanced.
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'85 C10 SWB 350 700R4 TKO600

Offline VileZambonie

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Re: Summit K1107
« Reply #2 on: February 08, 2010, 11:12:09 PM »
I have, and it is a good cam and I'd install it straight up but would always recommend degreeing the cam. What pistons are you using? I'd recommend roller rockers and matching valve springs too. How tall are your tires and what trans are you running?
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Clintond

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Re: Summit K1107
« Reply #3 on: February 09, 2010, 02:57:28 PM »
Quote from: VileZambonie on February 08, 2010, 11:12:09 PM
I have, and it is a good cam and I'd install it straight up but would always recommend degreeing the cam. What pistons are you using? I'd recommend roller rockers and matching valve springs too. How tall are your tires and what trans are you running?

I have Comp 1.5 full roller rockers.  Not sure on pistons will be the first time I tear it down but figure they are factory cast dished pistons.  I'm running 275/60/15 tires and 350 trans.  The heads are being set up for this cam.  I was thinking about installing 4 degrees advanced but if you recommend straight up I'll run it like that.   
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Offline VileZambonie

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Re: Summit K1107
« Reply #4 on: February 09, 2010, 03:49:04 PM »
Yes run it straight up, you won't be sorry. When you're having your heads reworked put some screw in studs and guide plates. Go with hardened push rods and upgrade to some hypereutectic flat tops.
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,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline 07montecarlo

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Re: Summit K1107
« Reply #5 on: February 14, 2010, 07:36:12 AM »
cant go wrong installing straight up, cam makers already put 4 degrees advance into the grind.. also make sure you do a search into cam break in.. theres a lot of flat tappet cam failures now due to the quality of todays oil and the zinc properties in it...
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Offline Clintond

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Re: Summit K1107
« Reply #6 on: February 14, 2010, 09:38:05 AM »
I got Comp Cams break in lube and I'm running Valvoline VR1 oil.  I'm still waiting on the heads so I can get it going.  The rest of the parts are sitting in the garage ready to be put on.
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Offline eventhorizon66

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Re: Summit K1107
« Reply #7 on: February 17, 2010, 10:41:22 PM »
Quote from: 07montecarlo on February 14, 2010, 07:36:12 AM
cant go wrong installing straight up, cam makers already put 4 degrees advance into the grind

I didn't mean add 4 degrees to whatever the advance is.  I meant make sure the intake centerline is at 110 ATDC, but I see that the cam card says that number should be 109 ATDC, so 5 degrees advance.  In other words, be sure to degree the cam to the manufacturer's specs.  If you just throw it in "straight up" without checking, it could cost you some torque.
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'85 C10 SWB 350 700R4 TKO600
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