LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Cam swap question

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Old Apr 11, 2007 | 05:41 PM
  #1  
red1984's Avatar
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From: northeast Iowa
Cam swap question

I plan on a cam swap in the next month and I was wondering how this set-up sounds. I plan on ording my parts from summit.

CCA-07-503-8 Camshaft, Hydraulic Roller Tappet, Advertised Duration 276/281, Lift .503/.510, Chevy, LT1/LT4, Each
$255.95

CCA-1305-16 Rocker Arms, Stud Mount, Full Roller, Steel, 1.6 Ratio, Fits 7/16 in. Stud, Chevy, Small Block, Set of 16
$275.95

CCA-26918-16 Valve Springs, Single, 1.055 in. Outside Diameter, 313 lbs./in. Rate, 1.085 in. Coil Bind Height, Set of 16
$185.95

CCA-4501-16 Rocker Arm Studs, 7/16-20 in. Thread, 1.75 in. Effective Stud Length, Kit
$42.99

CCA-4705-16 Valve Spring Locators, Inside, Steel, .060 in. Thick, 1.100 in. O.D., .650 in. I.D., .660 in. Spring I.D., Set
$41.99

CCA-614-16 Valve Locks, Machined, Hardened Steel, 10 Degree, 1-Groove, 11/32 in. Valve Stem, Set of 16
$26.95

CCA-7808-16 Pushrods, High Energy, Steel, Heat Treated, 5/16 in. Diameter, 7.195 in. Length, Universal, Set of 16
$35.88

CCA-795-16 Valve Spring Retainers, Steel, 10 Degree, 1.095 in. Outside Diameter, .640 in. Inside Diameter, Set of 16
$50.69

FEL-MS95580 Gaskets, Manifold, Intake, Stock Port, LT1 Chevy, 5.7L, Set
$21.99

FEL-TCS45956 Gaskets, Timing Cover, Chevy, Small Block, Kit
$15.99

SUM-G6450 Guideplates, Flat, 5/16 in. Pushrod Size, Chevy, Small Block, Set of 8
$14.95
Old Apr 11, 2007 | 06:57 PM
  #2  
seawolf06's Avatar
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From: Raleigh, NC
If these are on stock LT1 heads, get the 10 degree + .050" locks and retainers.

DON'T USE THOSE GUIDEPLATES. Only use either the GMPP or Isky adjustable guideplates.

Also make sure that whomever you're ordering those springs from that they were involved with the recall from Comp Cams and sent back any bad sets.
Old Apr 11, 2007 | 10:24 PM
  #3  
red1984's Avatar
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From: northeast Iowa
Why shouldn't I use the SUM-G6450 Guideplates?
Old Apr 11, 2007 | 10:49 PM
  #4  
seawolf06's Avatar
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From: Raleigh, NC
Originally Posted by red1984
Why shouldn't I use the SUM-G6450 Guideplates?
More than likely they won't align the pushrods correctly. The correct ones aren't that expensive. Why leave something like that to chance?

Get some good chromemoly .080" wall one-piece pushrods. Comp, Crane, Manley, Thunder and Trickflow all have good ones.
Old Apr 12, 2007 | 08:33 AM
  #5  
Z-RATED94's Avatar
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Joined: Jun 2003
Posts: 3,557
From: Carol Stream, Il.
Originally Posted by red1984
Why shouldn't I use the SUM-G6450 Guideplates?
Because the spacing of the pushrods is wrong for LTx heads. GMPP or the Iskys as seawolf06 mentioned is the way to go.
Old Apr 16, 2007 | 03:03 PM
  #6  
red1984's Avatar
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Joined: Sep 2006
Posts: 171
From: northeast Iowa
Updated list. Does this sound better?

CCA-07-503-8 Camshaft, Hydraulic Roller Tappet, Advertised Duration 276/281, Lift .503/.510, Chevy, LT1/LT4, Each
$255.95

CCA-1305-16 Rocker Arms, Stud Mount, Full Roller, Steel, 1.6 Ratio, Fits 7/16 in. Stud, Chevy, Small Block, Set of 16
$275.95

CCA-26918-16 Valve Springs, Single, 1.055 in. Outside Diameter, 313 lbs./in. Rate, 1.085 in. Coil Bind Height, Set of 16
$185.95

CCA-4501-16 Rocker Arm Studs, 7/16-20 in. Thread, 1.75 in. Effective Stud Length, Kit
$42.99

CCA-4705-16 Valve Spring Locators, Inside, Steel, .060 in. Thick, 1.100 in. O.D., .650 in. I.D., .660 in. Spring I.D., Set
$41.99

CCA-614-16 Valve Locks, Machined, Hardened Steel, 10 Degree, 1-Groove, 11/32 in. Valve Stem, Set of 16
$26.95

SUM-1457200 Pushrods, Chromemoly, Heat Treated, 5/16 in. Diameter, 7.200 in. Length, Universal, Set of 16
$80.95

CCA-795-16 Valve Spring Retainers, Steel, 10 Degree, 1.095 in. Outside Diameter, .640 in. Inside Diameter, Set of 16
$50.69

FEL-MS95580 Gaskets, Manifold, Intake, Stock Port, LT1 Chevy, 5.7L, Set
$21.99

FEL-TCS45956 Gaskets, Timing Cover, Chevy, Small Block, Kit
$15.99

NAL-14011051 Guideplate, Flat, 5/16 in. Pushrod Size, Chevy, Small Block, Each
$4.88
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