twisted wedge heads
Thread Starter
TECH Enthusiast
iTrader: (4)
Joined: Sep 2009
Posts: 534
Likes: 0
From: West TN/KY border
twisted wedge heads so i have a chance to buy a set of these rare heads, im working on an mildly agressive but streetable build, would they be good for that?
and also, does anyone know what parts are specific to these heads, i.e. valves, springs or what?
and also, does anyone know what parts are specific to these heads, i.e. valves, springs or what?
Last pair of these I knew of running on a car were rough on the valvetrain and the car later went faster with PROPERLY ported stock castings. If you want them for a conversation piece sure, for performance I would pass, they aren't bad but not that great either.
Thread Starter
TECH Enthusiast
iTrader: (4)
Joined: Sep 2009
Posts: 534
Likes: 0
From: West TN/KY border
well im still really looking into them, but the only thing holding me back is my lack of knowledge on them, are the rockers the same as they are for regular lt1 heads, what about the springs, or pushrods, or valves?
Any SBC rocker will work with LT1 heads...it's the valve covers that are the problem when it comes to fitment (center bolt versus perimeter).
Valves/pushrods should be standard SBC.
Valves/pushrods should be standard SBC.
Trending Topics
I don't have any experience with the twisted wedge heads on LT1, but I had 2 friends who ran them on old SBC's. One claims a 3+ MPG improvement and alot more power, but he doesn't race. The other said he saw some gas milege increase as well and he went from consistent 8.80's to consistent 8.30's with no other changes with his daily driver. That was compared to some very good heads to start with...not vs. some stock smog head stocker junk. 1/8th mile track of course.
I do remember they both had to use custom length pushrods, and that you can only run xxx amount of lift before custom valve notches were required due to the different valve angles/placements with the "twisted wedge" chamber. If I remember correctly it wasn't much over .525" lift and 23X something @ .050" that was recomended. That was with a flat tappet hydraulic. I'm pretty sure all this would still apply to the LT1 since the differences should be water passage related only.
I do remember they both had to use custom length pushrods, and that you can only run xxx amount of lift before custom valve notches were required due to the different valve angles/placements with the "twisted wedge" chamber. If I remember correctly it wasn't much over .525" lift and 23X something @ .050" that was recomended. That was with a flat tappet hydraulic. I'm pretty sure all this would still apply to the LT1 since the differences should be water passage related only.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
If you're looking for a decent H/C/I lt1, go with a set of LE heads and be done with it. Or AI. Go with what's easier and more common, thus easier to repair/replace if something goes wrong.
Thread Starter
TECH Enthusiast
iTrader: (4)
Joined: Sep 2009
Posts: 534
Likes: 0
From: West TN/KY border
just the thing that keeps me looking at them is, dont we do stuff to our cars to make them different from everyone elses? so the cool factor of these is very high, especially if they are a good set of heads, which i have been hearing good things about them.
Teching In
Joined: Nov 2010
Posts: 39
Likes: 0
No one gives a **** if you think my comment was necessary or not.
Teching In
Joined: Nov 2010
Posts: 39
Likes: 0
Lloyd Elliott is really good at what he does and the price is better. I don't see why you have a reason for bashing him. Like he ports heads the wrong way just because they are hand ported!