They project it will hit 3.50 by summer, so $4 might not be too far off.

 

Whats gas where you are cuz here its is at 3.20 and the guy I get my gas from told me sunday that gas is going to be $4.00 by the end of May. [:@]But thats why I own a car that get 35mpg.

 

my 07 classic got 21.7 on a 2oo mile round trip yesterday

 

Yea ive been looking around for an old beater car here but cash is tight.
VA is thinking about repealing some retarded driver abuse laws they passed last year. the fees were to discourage abusive driving but the money went to road improvements. now i heard that if they repeal the laws they are going to increase the gas tax. so now everyone gets screwed.

 

Yeah the truck is my beater so I dont worry bout its gas too much. Well kinda. Not so much a beater and more of a toy. I use it for the winter, towing the boat, camping, weekends, and a little off road (hopefully more with a few more mods).

 

This is a long read but I think you guys will like it

Vortec 5300 Gen III (L33/LM7/L59) V-8 Truck Engines

2005 Model Year Summary

• RPO L33 for Chevrolet Silverado and GMC Sierra
• Returnless Fuel Injection for Flex-Fuel Vortec 5300s
• Floating Pin Pistons
• Regulated Voltage Control
• Electric Cooling Fans
• Improved Throttle Mapping and Throttle Actuator Control (TAC) Module
• Rate-Based Diagnostics
• Iridium-Tip Spark Plugs
• GF-4 Engine Oil



FULL DESCRIPTIONS OF NEW OR CHANGED FEATURES

RPO L33 FOR CHEVROLET SILVERADO AND GMC SIERRA
The Gen III Vortec 5300 is available in a new lighter, higher output variant optional on some 2005 Silverados and Sierras. RPO L33 will be introduced in short bed, extended cab versions of these pickups. The L33 features an aluminum engine block, new cylinder heads and a high-lift cam. Torque will increase, and horsepower is expected to exceed 300 in final production trim.

One of the L33’s distinguishing features is its engine block. As with the 2004 LM4 Vortec 5300, the L33’s foundation is a cast-aluminum block with pressed-in iron cylinder liners, similar to the block used for GM Powertrain’s LS1 and LS6 car V-8s. The L33 block is exceptionally light; as a result, a fully dressed L33 is 100 pounds lighter than cast iron-block Vortec 5300s (RPOs LM7 and L59).

The L33 takes its cylinder heads from the LS6. Originally developed for the Z06 Corvette, these heads improve airflow in and out of the engine. With their pent-roof combustions chambers and new flat top pistons (the pistons in other Gen III Vortec 5300s have a slight sump in the piston deck), the L33’s compression ratio increases from 9.5:1 to 9.9:1. This increase improves the engine’s volumetric efficiency yet still allows it to achieve full power with regular grade gasoline.

Finally, the L33 is equipped with a higher-lift camshaft. Maximum valve lift increases from 11.6 mm on the LM7 and L59 to 12.5 mm. The new cam and compression ratio are the primary sources of the L33’s increased horsepower.

The L33 camshaft and cylinder heads were developed in conjunction with the new Gen IV Vortec 5300 (RPO LH6). The design objective was more horsepower for customers who need it, without requiring a step up to the Vortec 6000 (and an increase in operational costs). RPO L33 expands GM Powertrain’s lineup of Vortec V8s and gives GM’s truck customers even more flexibility and choice.

The L33 Vortec 5300 will be built at Powertrain’s Romulus, Mich., engine plant. With its introduction, Powertrain will cease production of Vortec 5300 RPO LM4. The Buick Rainier, Chevrolet Trailblazer EXT and GMC Envoy XL, previously equipped with the LM4, will now be powered by the Gen IV Vortec 5300 with Displacement on Demand. The 2005 Chevrolet SSR will be powered by the new LS2 truck V-8.


RETURNLESS FUEL INJECTION FOR FLEX-FUEL VORTEC 5300
The flex-fuel Vortec 5300 (RPO L59) is equipped with a new ....returnless’’ fuel injection system. Also know as a demand system, returnless fuel injection eliminates fuel return lines between the engine and the gasoline tank.

Launched in 2002, the L59 was the first flexible-fuel V-8 for full-size sport-utility vehicles. This Vortec 5300, capable of operating on fuel that contains up to 85 percent ethanol alcohol (E85), is standard equipment in Chevrolet Tahoe and Suburban and GMC Yukon and Yukon XL. E85 produces 20 percent less carbon dioxide than gasoline, and in some instances costs less. The L59 adjusts seamlessly between gasoline and E85 operation, giving customers hassle-free choice.

With its flex-fuel capability, the L59 fuel system is unique among Vortec 5300s. Because ethanol has fewer BTUs (less energy) than the same volume of gasoline, more fuel is required to produce the same horsepower at wide-open throttle. The L59 is equipped with unique injectors with a greater cone angle and hig

 

yea, the 5.3 is a good engine, but like all GM V8's it uses a good bit of gas.
Where I am, gas is usually cheaper than the bigger states, but I paid 3.15 today...
its getting redicilous. [:@]

I still want an older 350 4x4 K10 as my 2nd truck.

 

The GM V-8's are much better on gas than the Fords.

 

you're right, my buddy's 5.4 ford gets worse mileage and its slower than my 4.8 lol

 

i want another 89-91 K5 blazer with the tbi 350. i loved that thing