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Old 04-09-2020, 08:08 PM   #1
Joshinator99


 
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Mast Motorsports Black Label LT1 Heads

Hey fellas, not sure if anyone has had a chance to try these new heads out? Mast made some killer LS heads in the past, so when they decided to make some LT heads, it definitely caught my eye. I decided to pull the trigger on them for my next round of upgrades on my Whipple SS. They finally arrived today, and look to be a thing of beauty! Flow numbers are obviously very solid too, but the craftsmanship looks to be top notch. Here’s hoping they perform like they look!
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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Old 04-09-2020, 08:16 PM   #2
Redlinez
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I'm by no means a cylinder head guru, but those things look like a work of art. You want to play, you gotta pay. Looking forward to seeing your numbers.
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Old 04-09-2020, 08:41 PM   #3
parish8

 
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Wow. Eldebrock, cid, prc and now mast. How is a person to decide?
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dropped a valve in the 6.2. now running a drop in rods and piston 5.3
best et 5.83@121 with the 5.3 http://www.camaro6.com/forums/showthread.php?t=465472
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Old 04-10-2020, 09:25 AM   #4
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drool...
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Old 04-10-2020, 10:18 AM   #5
KingLT1


 
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Sweet. what valves do you plan on using?
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2016 NFG 1SS A8
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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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Old 04-10-2020, 11:05 AM   #6
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damn those are nice any idea on $$?
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Old 04-10-2020, 01:45 PM   #7
Joshinator99


 
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Quote:
Originally Posted by KingLT1 View Post
Sweet. what valves do you plan on using?
I'll probably do Manley Severe Duty stainless on intake and Manley Inconel on exhaust. Going to run CamMotion springs with titanium retainers.
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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Old 04-10-2020, 01:45 PM   #8
Paintslinger16
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Look awesome, but naked. Is that by choice or Do you have to supply your own valve train?
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Old 04-10-2020, 01:46 PM   #9
Joshinator99


 
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Quote:
Originally Posted by kropscamaro16 View Post
damn those are nice any idea on $$?
$3K for bare heads.
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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Old 04-10-2020, 01:48 PM   #10
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Quote:
Originally Posted by Paintslinger16 View Post
Look awesome, but naked. Is that by choice or Do you have to supply your own valve train?
I could have had Mast outfit them, but I have a really great local machine shop that I wanted to give business to as well. Plus, I wanted CamMotion to spec the springs to work with the custom cam, and am waiting for those to arrive.
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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Old 04-10-2020, 01:55 PM   #11
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Quote:
Originally Posted by kropscamaro16 View Post
damn those are nice any idea on $$?

https://www.mastmotorsports.com/prod...-cylinder-head

Decked out with springs, ti intake valves and Inconel exhaust valves it comes up to about $5300. That is about the same price as the cid heads loaded up from lme.

I don’t have a clue which are better. The cid heads are set up for 6 head bolts but there is no aftermarket block yet. Someone that knows about this stuff needs to post up. I am mostly concerned with durability at high hp.

I think I will start a new thread asking comparisons between the 2 and not divert this thread any more than I already have.
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dropped a valve in the 6.2. now running a drop in rods and piston 5.3
best et 5.83@121 with the 5.3 http://www.camaro6.com/forums/showthread.php?t=465472

Last edited by parish8; 04-10-2020 at 02:21 PM.
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Old 04-10-2020, 02:49 PM   #12
KingLT1


 
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The Mast are 3,959.84 with polished dual springs and stainless hollow stem intake & solid exhaust valves. I would probably opt Inconel on the exhaust for boost which ups the cost to 4079.84.

Most builds don't warrant titanium intake valves and 1209x springs except maybe Max effort NA since the cam will be rather large.
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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

Last edited by KingLT1; 04-10-2020 at 03:18 PM.
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Old 05-20-2020, 07:47 PM   #13
Joshinator99


 
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Picked up my finished Mast heads yesterday. FWIW, just have Mast do this if you decide to do these heads. The valves (Manley severe duty stainless on intake and inconel on exhaust) are longer than stock due to the increased deck thickness. Also, the spring locators and valve locks are not the same as stock LT1. So I ended up buying all that stuff from Mast anyway. The dual valve springs and titanium retainers came from CamMotion. Now just going on week #8 waiting for my pistons & rods from GPI...
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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Old 05-22-2020, 06:44 AM   #14
EDFHOBBIES
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Finally been messaging 3 years should be the best of like the LS they have.

If I remember the LS had a slightly different valve geometry or angle to pull 1000 or so more rpms more if you used a good set of rockers
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