Game changer - LT1 heads on LS block
Thread Starter
On The Tree
Joined: Jun 2013
Posts: 166
Likes: 0
From: Seattle, WA
Game changer - LT1 heads on LS block Yup. Like some mad scientist at RHS sat around and laughed an evil laugh creating this monster.
The new LT1 heads flow a ridiculous amount of air. They also are part of the direct injection set up that also creates an awesome amount of HP.
RHS released at SEMA their new Pro Elite heads to retrofit an LT1 designed head to an LS motor. Will use an LT1 intake and the gnarly high pressure fuel pump, injectors and lines. Talked to the Aeromotive folks who are making an LT1 pump and fuel set up that should be out first quarter. Couple this with the new MSD Air Force intake and you've got yourself a nasty little set up.
The only thing I'm trying to wrap my head around is the tuning side, but I don't think the fuel map will be that big an issue in HP Tuners.
Easily the coolest thing I saw at this years show. Some images of the mentioned products...
The new LT1 heads flow a ridiculous amount of air. They also are part of the direct injection set up that also creates an awesome amount of HP.
RHS released at SEMA their new Pro Elite heads to retrofit an LT1 designed head to an LS motor. Will use an LT1 intake and the gnarly high pressure fuel pump, injectors and lines. Talked to the Aeromotive folks who are making an LT1 pump and fuel set up that should be out first quarter. Couple this with the new MSD Air Force intake and you've got yourself a nasty little set up.
The only thing I'm trying to wrap my head around is the tuning side, but I don't think the fuel map will be that big an issue in HP Tuners.
Easily the coolest thing I saw at this years show. Some images of the mentioned products...
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
How does an old computer control direct injection? and how does the cam now drive the fuel pump in the old block with no provision? Great idea I reckon for the bigger ci motors?? Seems anything 6.0 and down wouldn't benefit from any larger flowing heads then what already come stock/Gen4 (which most claim are lackluster in low rpms).
It'd be so very much stuff to change & fabricate and cost involved to get it to work you might as get a LT1 crate engine.
The only way I see of simplifying this down to a reasonably "do-able" job is to just find a wrecked truck with the LT1 engine and pull out everything-engine, transmission, harness, fuel system.
The only way I see of simplifying this down to a reasonably "do-able" job is to just find a wrecked truck with the LT1 engine and pull out everything-engine, transmission, harness, fuel system.
Trending Topics
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
!["MAC"'s Avatar](data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'><circle class='avatar-circle-default' fill='%237f3b59' cx='25px' cy='25px' r='20px'></circle><text class='avatar-text-default' x='49%' y='53%' fill='white' text-anchor='middle' alignment-baseline='middle'>"</text></svg>)
Thread Starter
On The Tree
Joined: Jun 2013
Posts: 166
Likes: 0
From: Seattle, WA
I'm thinking this most accurately describes the situation. Comp should have the cam to drive the fuel pump, but I didn't see if in their new products literature at the show. Its the tuning side of things that will be the issue that should bring it all together. Subscribed to Comp, RHS, Aeromotive's press releases. Should start getting them all early in the week now that the show is over. Playing the waiting game till PRI....
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
If you're thinking of running direct injection, then fueling will be different
( and IFR characteristics of DI injectors is way different than manifold mounted injectors )
I'm thinking you will need an ECM from an LT1.
( and IFR characteristics of DI injectors is way different than manifold mounted injectors )
I'm thinking you will need an ECM from an LT1.
Thread Starter
On The Tree
Joined: Jun 2013
Posts: 166
Likes: 0
From: Seattle, WA
Oddly enough, GM had a nice display on LT1 stuff also.....
TECH Fanatic
Joined: Jul 2007
Posts: 1,802
Likes: 332
From: Wilmington, De
I imagine the high pressure fuel pump will be belt driven or *gasp* driven off the nose of the cam like an Optispark.
Unless you will need a Gen III block and the lobe to drive the fuel pump is put in place of the cam position groove and the pump is driven through that hole and you need to relocate the cam sensor to the timing cover.
But then the valves would be way too big for the Gen III bores.
I guess we'll find out.
Last edited by MuhThugga; Nov 9, 2014 at 08:09 PM.
TECH Fanatic
Joined: Sep 2005
Posts: 1,584
Likes: 23
From: NYC
I see no-need for direct injection, because I don't need or want variable valve timing/active fuel management. It just adds complexity and more failure points and GM did it to comply with the new EPA requirements.
TECH Fanatic
Joined: Jul 2007
Posts: 1,802
Likes: 332
From: Wilmington, De
But I do agree in that I like to keep things simple and not add complexity.
