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The Vortec 7400 L21 was a professional version from the Chevrolet major-block motor Utilized in the medium duty truck platform. Its style shared Considerably With all the L29 454, but Along with the addition of forged pistons and crankshaft, and coil in the vicinity of plug ignition.

Amazingly low primary miles of only 31,188 regarding the odometer. This may be an accurate survivor truck, not a restored truck. It even now retains the manufacturing facility paint and decals. This truck is now babied on condition that new, in no way at any time utilized as currently being a “do The task truck” and has usually been garage retained. This truck is versus many of the SS 454's autos that you will see that have been repainted, abused, drastically modified, raced, rusty…..and so on. or each of the higher than. Pretty clear and honest truck throughout, even the spare tire has not been utilised or reduced throughout the truck. The 454 motor is completely untouched and “producing unit sealed”….

Whether you’re on a restoration challenge or just keeping the vehicle, this awareness will help you navigate the complexities with the 454 motor with self esteem.

It’s normally a minor issue but could have an effect on emissions tests (In the event your Chevy 7.4L V8 is issue to emissions tests). You may also hear ticking Appears, scent Uncooked exhaust, or observe a rather louder/raspier engine Be aware.

However, the 7.4L V8 was also frequent in many Chevy and GMC trucks with the mid 70’s up right until the early 2000’s. It had been also in a number of RV’s as well as other applications. With countless takes advantage of it’s uncomplicated to track down applied or junkyard 454’s which makes it an inexpensive and straightforward engine to own.

The motor vehicle is supplied with production device A/C and has a completely new high-capability compressor. The A/C blows Chilly! The inside will be the really pleasing black with bucket seats as well as a Middle console Along with the well-identified horseshoe shifter.

Optional on both of those equally the 396 and 454 was another cowl-induction hood, which had a rear dealing with flapper near the base of your windshield to feed air from the engine.

Also featuring a lot quicker steering and also a decreased suspension process (with upgraded swaybars and Activity shocks), the engine would see an up grade to 255hp the next yr. The 454 SS was developed till 1993.

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Regretably, the raised deck style complicated using the block in racing purposes, as conventional consumption manifolds needed spacers for right in shape. Distributors with adjustable collars that permitted adjustments to your length of your distributor shaft also experienced to be used with 366 and 427 truck blocks. These engines may be modified for performance use with different size rods, pistons, and/or crank throws, nonetheless it's normally considered much easier and even more affordable to work with readily available 454 and 502 displacement standard blocks for performance use.

This would make sure that these legendary autos not basically retain their legacy but in addition identify in worthy of just after a while.

The best engine alternate click here was the LS6 Version with 450bhp. The normal Chevelle SS 396 continued with its 402 cid engines, although the 325bhp was dropped as well as 350bhp Version was now typical.

An additional doable trouble with Chevy 454 exhaust manifolds could be the manifold itself cracking. Signs are comparable to aged, leaking gaskets and it’s also generally a fairly small issue.