View Poll Results: yella terra or harland sharp
yella terra
96
51.89%
harland sharp
89
48.11%
Voters: 185. You may not vote on this poll
yella terra vs. harland sharp..
03-04-2007, 07:59 PM
#2
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i have the yella terras...i already had one break..but i think i know y.....uhhh one has needle bearings, one doesnt......just my .02 forged aluminum isnt really for longevity..kinda meant for weekend cruisin; racin
03-04-2007, 09:52 PM
#3
Originally Posted by SStheBest
i have the yella terras...i already had one break..but i think i know y.....uhhh one has needle bearings, one doesnt......just my .02 forged aluminum isnt really for longevity..kinda meant for weekend cruisin; racin
03-05-2007, 01:46 PM
#4
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<- voted HS...but I've heard mixed reviews on both of them.
Currently I'm running the HS 1.7s and they've worked fine...
I think it's just a matter of preference...
Currently I'm running the HS 1.7s and they've worked fine...
I think it's just a matter of preference...
03-05-2007, 04:52 PM
#5
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Originally Posted by SStheBest
but i think i know y.....uhhh one has needle bearings, one doesnt......just my .02 forged aluminum isnt really for longevity..kinda meant for weekend cruisin; racin
03-05-2007, 05:00 PM
#6
Yella Terra has stepped it up a notch with their brand new Ultra Light shaft mounted rockers. Part number 6645. They are much lighter than the old Yella Terras. Most of the weight is centered around the trunion. The roller tip is super light. A few people on the board are running them. I should be running some before the end of the month! 
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
03-05-2007, 05:19 PM
#7
Originally Posted by Patrick G
Yella Terra has stepped it up a notch with their brand new Ultra Light shaft mounted rockers. Part number 6645. They are much lighter than the old Yella Terras. Most of the weight is centered around the trunion. The roller tip is super light. A few people on the board are running them. I should be running some before the end of the month!
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03-05-2007, 07:28 PM
#10
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Both are excellent rockers but I chose YT because they were slightly cheaper and they have been redesigned to eliminate the weight over the nose. They are quiet, beefy and just a good all around rocker.
03-05-2007, 08:23 PM
#12
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I've got the newer ultra light design... my stocker had 70k on them and I wanted to get rid of the needle bearings. Spins to 7k w/o issue... power levels off at 6500.
Heres some pics, almost too pretty to put the valve covers on...
Heres some pics, almost too pretty to put the valve covers on...
03-05-2007, 10:48 PM
#14
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I will add that I had to grind on both sets of heads I've had to get the Harland's to clear...both were GM castings that had been CNC'ed...perhaps that was the problem.
However you look at it, grinding on your motor isn't any fun...
However you look at it, grinding on your motor isn't any fun...
03-06-2007, 01:32 AM
#16
I've put the new style on 2 builds now. They have a lot of little improvements as already listed. Also have a much larger paired trunion, then the thin dowlpin HS. They should have less deflextion, witch is better for getting max lift for power. And better on the heads for guild life also.
Just some dyno pulls for winter, but see no issues. We'll be useing them over HS now.
http://i2.photobucket.com/albums/y11...n/P1010075.jpg
Just some dyno pulls for winter, but see no issues. We'll be useing them over HS now.
http://i2.photobucket.com/albums/y11...n/P1010075.jpg
03-06-2007, 05:29 AM
#17
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the only reason one of my YT's broke was it got starved of oil....my car has ring issues...and i have to monitor that more than anyone EVER should....but untill i pay it off i wont have the money to tear it down....plus i figure if i go in there i might as well put somthin worth while back in it 
03-06-2007, 01:12 PM
#18
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Does anyone know what the new lighter YT weigh? As a pair or whatever. If someone has these ready to install and can weigh then first that would be great.
Also what lift ratio off the seat and at full opening if anyone knows.
Thanks
Mark
Also what lift ratio off the seat and at full opening if anyone knows.
Thanks
Mark
