08-10-2022, 06:58 PM | #1 |
Drives: 2022 1SS 1LE M6 Join Date: Feb 2022
Location: BC, Canada
Posts: 59
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Pushrod Length with new Cam and my master plan for new 1LE
Does anyone know what the factory pushrod length is on the non-DOD cylinders, 7.850"? Assuming I were to use a new GM same thickness head gasket, Cadillac race lifters, and a Cammotion Titan II Cam, would I need a pushrod length checker to verify the length or would measuring the stock length pushrod on a non-DOD cylinder work? Will 3/8" fit or do I need to use 5/16"?
My plan on a 22 1LE M6 is as follows: 1. Rotofab CAI with dry filter 2. Katech ported 87mm TB 3. Non ported LT2 intake 4. Cammotion Titan II at 222/234, 114+4, .612 .603 5. Cadillac race lifters 6. 1 7/8" headers with cats to stock NPP 7. Get a Tune with HP Tuners 8. DSX Flex fuel kit 9. Will normally run on 94 Chevron or 93 Shell Everything is pretty mild, but put together I am hoping for a very reliable 510hp or so at the wheels on 94 Chevron. What do you guys think?
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2022 1SS 1LE M6 ordered 31 Jan 22
Picked up 20 Aug 22 |
08-10-2022, 08:41 PM | #2 |
Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016
Location: US
Posts: 1,196
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So I can measure my stock ones and see what length they are, but I can't really figure out what you are trying to do or if you are trying to use stock pushrods or not?
Pretty sure all the non-stock cams are going to have a smaller base-circle and as I understand it the only reason why you would need to change pushrod length with just a cam change. |
08-10-2022, 09:06 PM | #3 |
Drives: 2022 1SS 1LE M6 Join Date: Feb 2022
Location: BC, Canada
Posts: 59
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Well, I want to go with 16 new pushrods, 3/8" diameter, .080 thick Manton or Trend, and the correct length for a new cam with obviously no DOD. I would be surprised if base circle will be different but maybe? I'm just trying to see what length push rods with stock cylinder heads and new stock head gasket would be required. Any input on parts combo and expected HP goal are also welcome.
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2022 1SS 1LE M6 ordered 31 Jan 22
Picked up 20 Aug 22 |
08-12-2022, 10:06 AM | #4 |
Drives: 2019 Camaro 2SS Join Date: Aug 2020
Location: McCordsville, Indiana
Posts: 621
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I’d measure. What springs? I don’t see that on your list. I’d run beehives personally…
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2019 Shock 2SS A10. 2650@10psi/LPE HPFP/XDI+30/LT4 LPFP+JMS/Soler 95mm/Rotofab, E65, CSP 2” Headers/GESI GenII Cats. MM Wild/GM SG3 suspension/1LE Brakes, Velgen VF5 Wheels/GY SC3. JRE Tuned.
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08-12-2022, 10:58 AM | #5 |
Drives: 2019 Camaro 1LE Shock Candy Join Date: Mar 2016
Location: Garage
Posts: 1,755
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The go to length is:
BTR: LT Chromoly 5/16" Pushrods [Camaro Corvette CTS V, LT1 LT4 LT5] × 1 7.850" with LS7 lifters on my build. Your build is not to far off from my build. I netted 526 RWHP and you can add another 25-30 RWHP depending on tune and E85 strength.
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LT4 1.7 Supercharger snout ported & Meth
103 Katech TB, KATECH Custom Heads TSP Headers, Spec P Super Twin Clutch, TSP EL C7 CAM Diamond Piston & Manley Rods, Roto Fab Big Gulp BTR Push Rods,LS7 Lifters, ARP, FI Chiller, Kirkey Seats SJM Line Lock, Hurst Pistol Grip. 747/739 RWHP street tune - 821/794 RWHP track tune 98 octane. 2014 Mini Cooper countryman S All4 M6 daily driver Last edited by BlackbeastSS2; 08-12-2022 at 11:15 AM. |
08-12-2022, 11:10 AM | #6 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
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I would measure...especially since you are using different lifters then LS7. Most of the base cam swap kits include LS7 lifters and 7.850 push rods. Different lifters may require a slightly different push rod length.
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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 |
08-12-2022, 12:43 PM | #7 |
Drives: 2022 1SS 1LE M6 Join Date: Feb 2022
Location: BC, Canada
Posts: 59
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I'll get a length checker in case the Cadillac race lifters are a different length than LS7 lifters. For springs I was looking at .660 Platinums from Cammotion. As for pushrod width, will 3/8" fit or will I need to stick with 5/16"?
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2022 1SS 1LE M6 ordered 31 Jan 22
Picked up 20 Aug 22 |
08-12-2022, 02:32 PM | #8 |
Drives: 2022 LT1, 1981 320i Join Date: May 2022
Location: Massachusetts
Posts: 71
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Just curious, why not port the LT2? A lot of folks seem to go with a 95mm TB, is that not needed for these power levels?
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09-24-2022, 09:55 AM | #9 |
Drives: 2010 Camaro 2ss procharged Join Date: Apr 2015
Location: Hbg pa
Posts: 82
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Pushrods
Do it right. You let your engine builder measure them.
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10-04-2022, 01:46 PM | #10 |
Drives: 14 Camaro SS 1LE Join Date: Feb 2019
Location: Clinton Twp, MI
Posts: 483
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Run 3/8 .080 or .135 pushrods, measure the length. Do not make the mistake of assuming length and accidentally hanging a valve open. It takes about 5 minutes to measure with a length checker
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10-04-2022, 11:48 PM | #11 |
Drives: 2022 1SS 1LE M6 Join Date: Feb 2022
Location: BC, Canada
Posts: 59
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I will be measuring length for the pushrods, although I am still curious if the Cadillac lifters are the same height as LS7 lifters.
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2022 1SS 1LE M6 ordered 31 Jan 22
Picked up 20 Aug 22 |
12-07-2022, 09:06 AM | #12 |
Drives: 2018 2ss Camaro Join Date: Mar 2022
Location: Vancouver
Posts: 1
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First Post
I was browsing yesterday and came across your post. This is a great forum for information gathering and likely making new friends. I live in PoCo and have a 2018 2SS A8. I'll start by saying my kit came with 7.700 3/8 chromoly LS7 pushrods. They were the wrong length and I needed to exchange them for 7.850 rods.
I ordered my kit from TSP. A local shop "Racing Greed" did the install and tuning. Very happy with the results. The kit was their Gen5 LT1 VVT-1 camshaft with factory fuel lobe: 227/231, 635"/635", 116 LSA, 110.5 ICL. Came with springs,seats, Ti retainers and 0 degree phaser limiter plus all associated fasteners and gaskets. A LS C7Rcam chain, TSP roller tip rockers(probably the reason I needed longer pushrods) Comp Cams lifters and a DOD Delete kit. Other mods are a Chevrolet Performance CAI and axle back mufflers, 1 7/8" long tubes I had ceramic coated in Langley(catless) Best pull was 504HP and 478 FT/LB on Shell 93, several pulls were 498/476 I can live with that. I would like to add the newer Vette intake manifold in the springtime,but thats it for now.Hopefully I can post up my graphs soon and finish my signature lol. BTW it was on a Mustang dyno |
12-08-2022, 06:28 AM | #13 | |
Drives: 2017 Camaro SS Fifty Join Date: Oct 2016
Location: Port St Lucie, Florida
Posts: 966
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Quote:
That sounds like a lot of money for 50hp. Would you do it again? I was considering doing what you did but now IDK. |
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12-08-2022, 08:30 AM | #14 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
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Thats why many folks do the heads and intake manifold along with the cam... the gains can be closer to 150whp. The extra 3-4k is worth almost triple the gains.
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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 |
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