LT-1 Porting

Smoke-in · 01-29-2020, 07:23 AM

Getting ready to purchase the MSD intake, and install a stage 3 cam.
What's the deal with match porting? Do you need to pull the heads off to port the MSD to heads? With the cam I want, pretty sure I will need to up grade the valve springs, Do I need to send heads, manifold, and TB out to a shop to get match ported????? I know I will need a complete tune following work.
Got Kooks, full AWE, no cats now, and E-85 in place now.
Educate me!!!

Nitefall17 · 01-29-2020, 08:52 AM

Just get a Pray ported MSD intake. That one will be correct.

Smoke-in · 01-31-2020, 07:23 AM

So what does Pray do?
Take a MSD IM and bench port to a set of stock heads??

LESS1 · 02-01-2020, 12:07 AM

Quote:

Originally Posted by Smoke-in

Getting ready to purchase the MSD intake, and install a stage 3 cam.
What's the deal with match porting? Do you need to pull the heads off to port the MSD to heads? With the cam I want, pretty sure I will need to up grade the valve springs, Do I need to send heads, manifold, and TB out to a shop to get match ported????? I know I will need a complete tune following work.
Got Kooks, full AWE, no cats now, and E-85 in place now.
Educate me!!!

You should get in touch with a reputable builder for help selecting your parts combo. This way everything works together without creating any conflicts. Such as too large a cam with really poor low lift flow numbers..etc. As for port matching the idea is to make sure the intake manifold and cylinder head intake ports are all sized the same or just a little bit bigger on the cyl head intake port. The idea is to match both port sizes to equalize flow and avoid conflicts. Don't burn cash selecting parts if you aren't up to speed with these things. Better to find someone that can help you pick the best combo for your performance goals and do this one time to avoid replacing parts that don't work well together. No offense intended here.

Fraxum · 02-01-2020, 11:01 AM

^ This.

Smoke-in · 02-03-2020, 08:16 AM

No offence taken!
Just trying to figure out how Pray can send out an MSD manifold as a one size fits all? Ported to stock heads? In my mind, the heads need to come off and sent in to match port. Got to be variances between stock heads! Except for machine work, I try to do all mechanic work on my car myself, but I get the idea of a balanced build. I'm in the home work stage now!! A good tune at the end will be another thing I will need to search out.

squish72 · 02-03-2020, 12:06 PM

most porting of the intake isnt so much port matching but more porting and cleaning up the intake venturis to allow air to flow better in the intake itself. Yes the ends that match up with the heads will be opened up more then the stock intake but the extra flashing from the molding process is a big part that gets cleaned up

RobbyBeefcake87 · 02-03-2020, 12:50 PM

I think if you have the means to do, send your heads out to Pray for porting as well as the msd. Or talk to him about it, he obviously knows his stuff with 6th gens.

L78toLT1 · 02-03-2020, 12:56 PM

matching the ports to the intake has a very minor, nearly insignificant impact on flow, as counterintuitive as that sounds. This is true regardless of whether it's a positive or negative step. One engine builder told me about using an oval port intake on rectangular port big block heads with decent results.

Smoke-in · 02-04-2020, 09:24 AM

Great info!!
Need to more understand this new age tech stuff. Built a lot of Chevy motors 30-40 years ago, Both big and Sm block! But never have I installed a plastic intake!! That's progress, and I for one am amazed at the engineering that went into this LT-1 engine. and the LT-4 as well! Taking baby steps right now, but I will plan on sending heads out to somebody.
I think my big challenge will be choosing the right cam. I will want to go as aggressive as possible with out changing out the lifters. Springs and push rods yes, but hopefully not lifters. Any suggestions ????

Tim M · 02-04-2020, 01:22 PM

Unfortunately, the lifters are a bit of a problem area...DOD complications.

AcmeCamaro · 02-04-2020, 04:28 PM

I too am in the homework stage. I just sent pray a email to start on a plan.

But if it helps with your cam selection.... some of the name brand cams offer a compete cam install kit with there cam. I went with lingenfelter gt32 cam. I believe the install kit was an additional 900 bucks but it's new gaskets rollers springs lifters dod/afm delete plugs etc... absolutely everything you'll need for the install. Well worth it in my opinion. Even though price wise lingenfelter is very proud of their product lol. Worth it I'm hoping

Smoke-in · 02-05-2020, 12:21 PM

Is E Mail the best way to contact Pray? Been looking for a number, but not found it yet.
Seems to do a lot on Face Book PM's

Frankie18SS · 02-05-2020, 06:55 PM

Quote:

Originally Posted by Smoke-in

Is E Mail the best way to contact Pray? Been looking for a number, but not found it yet.
Seems to do a lot on Face Book PM's

Yes, FB PMs is how I contacted him.

01-29-2020, 07:23 AM	#1
Smoke-in Drives: 2018 Camaro SS 1LE Join Date: Jan 2020 Location: Illinois Posts: 41	LT-1 Porting Getting ready to purchase the MSD intake, and install a stage 3 cam. What's the deal with match porting? Do you need to pull the heads off to port the MSD to heads? With the cam I want, pretty sure I will need to up grade the valve springs, Do I need to send heads, manifold, and TB out to a shop to get match ported????? I know I will need a complete tune following work. Got Kooks, full AWE, no cats now, and E-85 in place now. Educate me!!!

02-01-2020, 11:01 AM	#5
Fraxum Drives: a M6 LT1 ordered From Becky!!! Join Date: Jan 2010 Location: NJ Posts: 7,520	^ This. __________________ "Democracy Dies in Darkness" My LT1 Keeper ..... ..... My Car Blog CarPlayList, a free App to build USB and Android Music drives.

02-03-2020, 12:06 PM	#7
squish72 Drives: 2016 2SS 8AT Join Date: May 2018 Location: Nevada Posts: 358	most porting of the intake isnt so much port matching but more porting and cleaning up the intake venturis to allow air to flow better in the intake itself. Yes the ends that match up with the heads will be opened up more then the stock intake but the extra flashing from the molding process is a big part that gets cleaned up Last edited by squish72; 02-03-2020 at 05:01 PM.

02-03-2020, 12:50 PM	#8
RobbyBeefcake87 Drives: 2018 Camaro SS 1LE Join Date: Aug 2018 Location: Tampa Florida Posts: 1,980	I think if you have the means to do, send your heads out to Pray for porting as well as the msd. Or talk to him about it, he obviously knows his stuff with 6th gens. __________________ 2000 Miata - aventi storm wheels, roll bar. 2019 Mustang GT pp1 - svt pp2 wheels, mbrp cat back, sync 3 upgrade, p1x procharger + stg2 intercooler. 2018 Colorado zr2 - zr2 sport bar, showcase spare tire. 2018 Camaro SS 1LE - GM cai, black bowties, suede knee bolsters, 1le plate frame, black fuel door, dark tails + 3rd brake light, euro side markers + led's, GM all weather floor mats, velossatech big mouth, GM strut brace. 2017 Corvette Grandsport (sold) - untouched. 2006 GTO (sold) - iat relocation, air box mod, monero side marker lights.

02-03-2020, 12:56 PM	#9
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,787	matching the ports to the intake has a very minor, nearly insignificant impact on flow, as counterintuitive as that sounds. This is true regardless of whether it's a positive or negative step. One engine builder told me about using an oval port intake on rectangular port big block heads with decent results. __________________ Baby Blue 2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned

01-29-2020, 08:52 AM	#2
Nitefall17 Drives: Camaro 1SS A8 Vert Join Date: Sep 2018 Location: Tx Posts: 303	Just get a Pray ported MSD intake. That one will be correct.

01-31-2020, 07:23 AM	#3
Smoke-in Drives: 2018 Camaro SS 1LE Join Date: Jan 2020 Location: Illinois Posts: 41	So what does Pray do? Take a MSD IM and bench port to a set of stock heads??

02-03-2020, 08:16 AM	#6
Smoke-in Drives: 2018 Camaro SS 1LE Join Date: Jan 2020 Location: Illinois Posts: 41	No offence taken! Just trying to figure out how Pray can send out an MSD manifold as a one size fits all? Ported to stock heads? In my mind, the heads need to come off and sent in to match port. Got to be variances between stock heads! Except for machine work, I try to do all mechanic work on my car myself, but I get the idea of a balanced build. I'm in the home work stage now!! A good tune at the end will be another thing I will need to search out.

02-04-2020, 09:24 AM	#10
Smoke-in Drives: 2018 Camaro SS 1LE Join Date: Jan 2020 Location: Illinois Posts: 41	Great info!! Need to more understand this new age tech stuff. Built a lot of Chevy motors 30-40 years ago, Both big and Sm block! But never have I installed a plastic intake!! That's progress, and I for one am amazed at the engineering that went into this LT-1 engine. and the LT-4 as well! Taking baby steps right now, but I will plan on sending heads out to somebody. I think my big challenge will be choosing the right cam. I will want to go as aggressive as possible with out changing out the lifters. Springs and push rods yes, but hopefully not lifters. Any suggestions ????

02-04-2020, 01:22 PM	#11
Tim M Drives: 2018 Camaro SS 1LE Join Date: Jul 2018 Location: Stuttgart, Germany Posts: 807	Unfortunately, the lifters are a bit of a problem area...DOD complications. __________________ 2018 SS 1LE German Based Nurburgring Visit #19 Ring Laps: 77

02-04-2020, 04:28 PM	#12
AcmeCamaro Acme Drives: 2019 Camaro 1SS 1LE Join Date: Jul 2019 Location: TX Posts: 21	I too am in the homework stage. I just sent pray a email to start on a plan. But if it helps with your cam selection.... some of the name brand cams offer a compete cam install kit with there cam. I went with lingenfelter gt32 cam. I believe the install kit was an additional 900 bucks but it's new gaskets rollers springs lifters dod/afm delete plugs etc... absolutely everything you'll need for the install. Well worth it in my opinion. Even though price wise lingenfelter is very proud of their product lol. Worth it I'm hoping __________________ 2019 Camaro 1SS 1LE Kooks LT Headers Lingenfelter GT32 Cam Cold Inductions intake Flex Fuel converstion MSD Ignition System HPtuner American Flag Half wrap

02-05-2020, 12:21 PM	#13
Smoke-in Drives: 2018 Camaro SS 1LE Join Date: Jan 2020 Location: Illinois Posts: 41	Is E Mail the best way to contact Pray? Been looking for a number, but not found it yet. Seems to do a lot on Face Book PM's

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