06-17-2022, 11:51 AM | #1 |
Cam install
I'm going to have my entire front including radiators off to do a stage 2 FI interchiller upgrade. While I'm there is there a cam or custom grind that I can install w/out the supporting mods and Without taking the heads off? I'm eventually going to do a built motor next year so I'm just looking to get a few extra HP while I got the front off.
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06-17-2022, 11:58 AM | #2 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,532
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Quote:
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
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06-17-2022, 12:01 PM | #3 |
[QUOTE=JSH;11188405]Lingenfelter has a cam for you, and, unless the Lt4 is different, heads do not need to be removed but you do need to get yourself 16 pen magnets to hold the lifters up while you swap the cam.[/QUOTE
Is there a rod retaining tool for the lt4?I have seen LS rod retaining tools. |
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06-17-2022, 12:11 PM | #4 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,532
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[QUOTE=Dan82679;11188406]
Quote:
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
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06-17-2022, 12:13 PM | #5 |
06-17-2022, 05:01 PM | #6 |
Drives: 14 Camaro SS 1LE Join Date: Feb 2019
Location: Clinton Twp, MI
Posts: 483
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I would not do a cam without changing lifters, springs, pushrods, and vvt delete at them minimum
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06-17-2022, 07:17 PM | #7 |
I have called a few places and no one recommends changing the cam only so I just pulled the trigger on prc aftermarket heads with supporting mods and a Cam. I am currently at 730 Whp on 93 and 780Whp on full E-85(I have port Injection/Kong Xport/Interchiller) I don't want to go over 850-875 to keep things safe with the stock bottom end.If anything I can switch my upper pulley from a 2.3 back to a stock 2.5.
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06-17-2022, 08:59 PM | #8 | |
Drives: 2017 Camaro 2SS A8 Join Date: May 2019
Location: USA
Posts: 1,656
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Quote:
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Roto-Fab w/sound tube delete, Katech ported TB, Pray IM, Velossa, DD side markers, DSX FF, UPR Catch can, Halo brace, My custom vent gauge pod
Originally Posted by arpad_m - “Aww, yet another oil thread with almost the same question in the OP“ |
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06-17-2022, 09:21 PM | #9 |
06-17-2022, 11:01 PM | #10 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
Ha, should of just had CSP do all that when it was there I had a feeling this was coming.... Mines going back in soon for the longblock and port injection. We need to meet up dan.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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06-18-2022, 10:15 AM | #11 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
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All LT engines require pulling the heads for a cam install because the AFM lifters need to be removed and replaced with standard hydraulic lifters...GM choose to use AFM lifter hardware in all engines even if AFM is not active in the tune.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
06-18-2022, 10:53 AM | #12 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,532
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Personally, I have never done cam-only in any engine, but rather always custom valve train. I suspected the LT4 might be different.
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
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