09-28-2022, 01:13 PM | #1 |
Having FUN in the SUN...
Drives: 2022 M6 ZL1 1LE Join Date: Jan 2022
Location: San Diego CA
Posts: 1,128
|
DIY Hand Porting Cylinder Heads
Hey Team, I hand ported a set of LS1 heads back in the day with help from some pro's and thought it was fun... While my motor is apart, I was thinking of hand porting these LT4 heads as well...
Anyone here done any hand porting with good results?
__________________
2022 M6 ZLE: Katech Standard Ported Blower + Ported Heads + 103mm TB + Oil Pump + C5R Chain + Valve Covers + Coil Relocation Kit
TSP VVT and DoD Delete Covers + LME Chain Guide + DSX Billet Lid + ATI Damper + 9.17" Lower + 2.4" Upper + MM Wild Catch Can Coated AR Headers + GESI UHO Cats + V Bands + AWE Touring + Magnaflow Center X + MSD Coils + Banks iDash + JMS Booster ALL the BMR Read End Goodies + BMR Motor Mounts + JRE Terminator Cam Package + Big Gulp + GMS High Flow Crash Bar DMS Front HX + Fender Tank + FIC 30's + APEX SM.10's + TOYO 305/345 R888R's = 770rwhp 815rwtq @E55 13.5psi |
09-28-2022, 01:17 PM | #2 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,639
|
No. This just doesn't seem like a good idea to me, but more like "shade tree" engineering. CNC would be advisable.
__________________
'20 ZL1 1LE A10.
LME 390, E2650, FBO, 100 oct. 1116/967. 1.35/9.25/151 at 3500 ft. (only one pass) 15" conversion/MT ET Street R 325/50R15. |
09-28-2022, 02:51 PM | #3 |
Drives: 19' ZL1 A10, w/pdr Join Date: Sep 2014
Location: S.W. ohio
Posts: 1,586
|
Leave it to the pros.
__________________
BTR Stg II cam w/ 38% fuel lobe, ARH 2" headers into 3" w/cats, Kong X port, Weapon X triple ht exchangers, NW 103, Rotofab big gulp, DSX lowside, TCM tune, BMR Lockout, Mustang dyno 720 rwhp, 634 rwtq on 93 pump.
|
09-28-2022, 03:00 PM | #4 |
Drives: Chevrolet Camaro Join Date: Apr 2022
Location: Maryland
Posts: 137
|
Massage them a little bit and clean up the casting, free horsepower never hurts...
__________________
Procharger P1X, CSP Big Boy Cam, CSP Headers, LT4 HPFP, LT4 Injectors, JMS BAP - 722WHP
|
09-28-2022, 08:48 PM | #5 |
Drives: 2016 Camaro SS 2017 Yukon Denali Join Date: Jan 2020
Location: Colorado
Posts: 116
|
|
09-29-2022, 06:11 AM | #6 |
Drives: 2022 LT1 Camaro Join Date: Nov 2021
Location: Fort Wayne
Posts: 43
|
If they're out and you have time, go for it! Even if you aren't a pro or have machinery to throw them on, there's can always gains from cleaning up.
__________________
10.92 @129.3mph
|
09-29-2022, 11:26 AM | #7 |
Drives: 2022 1SS Team Joe and Becky Join Date: Apr 2021
Location: Georgia
Posts: 188
|
Without it being something I did every day, I'd just clean up any casting crud. Slowly. I have done some port matching on older heads, but just don't know enough about the newer heads to start really grinding on them. I don't know where the big gains are, but more importantly don't know where the meat is.
|
09-30-2022, 06:24 PM | #8 |
Drives: '20 SS/1LE Join Date: Jul 2020
Location: Lafayette,Indiana
Posts: 34
|
without some way to flow test the individual ports i'm not sure you could get them all close to the same? never did it though...
|
09-30-2022, 08:59 PM | #9 |
Drives: 2022 2SS 1LE 6 MT Join Date: Aug 2022
Location: York, PA
Posts: 70
|
Wouldn't waste my time, it would all be guesswork.
__________________
2022 Camaro 2SS 1LE
Rapid Blue || 6MT |
10-01-2022, 09:16 AM | #10 |
Drives: LT1 Join Date: Mar 2022
Location: Fl.
Posts: 82
|
https://itstillruns.com/calculate-en...e-6393767.html
Too much will kill the bottom end. I wouldn't touch them without being able to flow them. I did spend $1,000 for George Bryce (Star Racing) to port my Harley heads but they needed it for my intended use. |
|
|
Post Reply
|
|
|