According to Myron, with these modifications you can have an
L98 with about the same horsepower as a C5 for considerably less cash.
You Can Spruce Up Your L98 With The Right Parts
- Tune It Up.
- Fuel Pressure.
- Porting & Air Flow.
- Computer Tuning.
- Throttle-Body Openings.
- Exhaust.
- Ingnition Module.
- Cam & Intake.
Item: It is hands-down the fastest American automobile, capable of 140-mph top speeds, 0-to-60 times under seven seconds, and 15.2-second quarter-mile forays at 90 mph. In fact, these figures qualify the Corvette as one of the half-dozen fastest production automobiles in the entire world!
The fact that 230 peak horsepower at 4,000 RPM follows hard upon peak 330 lbs. -ft of torque at 3,200 RPM means an engine with a broad usable, RPM range.
TPI is as reliable as the sensors and wiring that runs it. yes injectors and fuel delivery can be a problem on this almost 30 year old technology. but if your sensors and fuel system are correct,it is as reliable as it ever was.
1986 Corvette Overview
| Model: | 1986 Corvette |
|---|
| Engine: | 350CI, 230/235 Horsepower, Tuned-Port Fuel Injected L98 V8 Engine. |
| VIN: | 1G1YY0789G5100001 – 1G1YY0789G5127794 (Coupe) 1G1YY6789G5900001 – 1G1YY6789G5907315 (Convertible) |
| Transmission: | 4-speed automatic (standard), 4+3 speed manual (optional) |
Best LS Engines
- LS9/LSA: Made for the 2009-2013 Corvette ZR1, the LS9 is a supercharged 6.2L engine rated at 638 horsepower — the most powerful of all small blocks.
- LS1: This is the one that started it all!
- LS7: Introduced in 2005, the LS7 sported 427 cubic inches, making it the largest small block ever.
One of the main differences between the LS1 and the LS2 is in the intake manifold. The LS2 intake is slightly better than the LS1 intake. The LS1 intake is designed for a 5.7L and flows enough air to keep a 350+ horsepower 5.7L happy. The later model LS1 came with an LS2 intake, which improved horsepower.
L98/L76/L77Introduced in 2006, the L98 and L76 are 6.0-litre variants of the LS2. The L76 was used in February 2006-on VZ and VE (auto only) Holden Commodores, Statesmans and Caprices (WL and WM models). The L77 debuted in the Series II VE Commodores for both automatic and manual transmission choices.
The LS2 was introduced as the Corvette's new base engine for the 2005 model year. It also appeared as the standard powerplant for the 2005–2006 GTO. It produces 400 bhp (298 kW) at 6000 rpm and 400 lb⋅ft (542 N⋅m) at 4400 rpm from a slightly larger displacement of 5,967 cc (6.0 L; 364.1 cu in).
A year after the LS2 debuted in the sixth-generation Corvette, the 7.0 LS7 upstaged it in the Corvette's Z06 model. The LSA block is nearly identical to the LS3 and L92 casting, and has the same basic features of all-aluminum LS blocks spun cast-iron cylinder liners and deep-skirted six-bolt powdered metal main caps.
The lower-output LE0 and LY7 engines were closely related. The LY7 engine was also used in the VZ Adventra due to the additional mass of its all-wheel drive system.
Peak Torque and Horsepower
| Cylinder Head | Peak Horsepower | Peak Torque |
|---|
| Edelbrock | 395 at 5,900 rpm | 409 at 4,200 rpm (5) |
| Speedway | 381 at 5,400 rpm | 409 at 4,200 rpm (5) |
| Vortec | 378 at 5,300 rpm | 408 at 4,300 rpm (7) |
| Stock Iron | 358 at 5,800 rpm | 379 at 4,300 rpm (8) |
The ZZ4 is a GEN I SBC, meaning it's basically the same casting as your L98, but they do have a little more stout bottom end. Hypereutectic pistons, GM powdered metal rods, and a cast crank.
| Holden Commodore (VE) |
|---|
| Powertrain |
| Engine | 3.0 L LF1 V6 3.6 L LY7 V6 3.6 L LFX V6 6.0 L L98 V8 (Manual 2008–2010) 6.0 L L76 V8 (Auto 2008–2010) 6.0 L L77 V8 6.2 L LS3 V8 (HSV and Pontiac) 7.0 L LS7 V8 (HSV only) |
| Dimensions |
| Wheelbase | 2,915 mm (114.8 in) |
With a maximum top speed of 158 mph (254 km/h), a curb weight of 3340 lbs (1515 kgs), the Corvette C4 L98 Convertible has a naturally-aspirated V 8 cylinder engine, Petrol motor. This engine produces a maximum power of 248 PS (245 bhp - 182 kW) at 4300 rpm and a maximum torque of 461.0 Nm (340 lb. ft) at 4300 rpm.
$2200 is just for parts and labour for the lifter replacement.
L98/L76 is the same engine except the L98 has the redundant DOD hardware removed.
