GMHighTechPerformance Homepage
 

L92 vs LS1 and LS2 Heads - Sick Flow, Less Dough- Tech

Sick Flow Less Dough
As previously mentioned, the stock length pushrods are reused, and the new pedestals are outfitted with the offset L92 intake rockers and stock exhaust rockers. The rockers are torqued to 22 ft-lbs.
Sick Flow Less Dough
The passenger-side valve cover on older LS1 cars needs to be clearanced for the offset intake rockers, which means removing the baffling and dividers. LS2- and LS6-style valve covers should not require such measures.
Sick Flow Less Dough
The assembled intake is placed on top of the valley cover and all connections are established, including the rear vacuum line. Though the L76 has a slightly different vacuum line hookup, this should prove no problem...
Sick Flow Less Dough
...for those already using an LS6 manifold, and won't require extending the vacuum line like on an LSX.
Sick Flow Less Dough
Also note that with the LS7's 39-pound injectors installed in the manifold, you must use the supplied SLP plug-in injector adapters with an LS1 wiring harness.
Sick Flow Less Dough
Since the test car is an F-body, the electronically-controlled throttle body is traded for a FAST 90mm cable throttle body. Daniecki Sr. also bolts up a conversion bracket onto the intake (included in the SLP kit), which affixes the cable.
Sick Flow Less Dough
The most laborious chore in switching to the L76 (as different from an LS6 or an LSX) is that the three MAP sensor wires need to be extended on F-bodies....
Sick Flow Less Dough
...A soldering gun, wire cutters, wire strippers, and a few feet of wire are all it takes to rectify this problem.
Sick Flow Less Dough
The two Danieckis lowered the Trans Am on top of the powertrain and K-frame assembly, and after a few hours of work ... Voila! To the untrained eye, the L92 heads and L76 intake are much less conspicuous than the previous setup,...

Prev | 1  | 2  | 3  | 4  | 5  | 6  | Next

Discuss in Our Forums
Get Adobe Flash player

Car Pictures

Related Articles
 
1987 Pontiac Firebird - Trial Formula
Check out this Exclusive 1987 Pontiac Firebird Formula, featuring Mufflex 4-inch exhaust, Motown engine, Koni Spa-1 Shocks, centerline wheels, and More!... more
 
LT-1 Ignition System - Getting to Know the Opti-Spark
Editor's Note: Way back in March of 1998, GMHTP ran "Opti-Spark" by Ray Bohacz, an engineering-level dissection of GM's Opti-Spark distributor. This evolutionary ignition component was a bridge... more
 
LT1-Powered Chevy Camaro Z28 - The Final Countdown
Project Grape Of Wrath is at an end, at least for the foreseeable future. The last bolt has been turned so it's time to run the final track tests and for our readers to evaluate the relative success... more
 
Change Machine
Politicos and silver-screen adulation junkies have long recognized that the capacity for reinvention is the cornerstone of longevity. The principle obtains equally in the automotive realm, where... more
 
Pontiac Trans Am - Blown Away Part II
Now that East Coast Supercharging has equipped Project LS1 with the Procharger P-1SC-1, an ATI balancer from Thunder Racing, and all of the relocated stock equipment, it was time to wrap things up.... more
 
Boost, Inc.
A Speed-Inc Built, 850-RWHP Street Terminator... more
 
EFI GM Parts - 2006 Best New Products
Twenty must-have new parts for your late model EFI GM.... more
 
1987 Buick Grand National - 11.20s For $1,900
Check out the upgrades this 1987 Grand National got to boost it into 11.2s.... more
 
1987 Buick GN Turbo V-6 - 10-Second TR
Check out this turbo V-6 install in a 1987 Buick Grand National.... more
 
Aftermarket EFI Systems - Tech - Mr. EFI
Collegiate mechanical engineering curriculum typically requires each student to complete a senior design project. More often than not, these requisite projects are pursued with a level of enthusiasm... more

 

Get Adobe Flash player