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Wiseco K491B100 Quick 8 Series 2618 Forged Piston Set 4.600 Bore BBC 598 12-14 Degree Solid Dome Gas Ported Nitrous

(Chevrolet Corvette 1970-74, Impala 1970-76, Malibu 1973-75, C1500 1990-93, Chevelle 1971-73, Blazer 1973, C10 Pickup 1973-74, Caprice 1970-76 + 48 more models)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

K491B100
14 reviews
Sale Price

$1,137.99

Estimated ship date Thursday, November 19

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Product Details
2618 Alloy Forged Pistons
Quick 8 Series
12-14deg Solid Dome
Gas Ported
Nitrous Compatible
Fits 9.750 Deck
Set of 8 Pistons
Recommended RingSet: W77008-4600-5
Rings Sold Separate
Includes Pins: S462
Strutted Skirt

World renowned for their work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated engines in such venues as Formula 1, Indy Racing League (IRL), NHRA Pro Stock, Moto GP, AMA Superbike, AMA Motocross and Supercross to design and manufacture the highest technology pistons available.

Features

  • Valve Pocket designs that allow maximum flow around valve, also allowing oversized valves and high lift cams to be utilized.
  • Piston Crown shapes designed to promote maximum Intake Charge efficiency through scavenging mixture Cross Flow during intake and
    exhaust valve overlap. More fuel and air equals more horsepower!
  • Piston Domes designed for optimal quench during the compression/ combustion cycle, resulting in resistance to detonation and preignition.
    The end result is longer engine life and increased horsepower potential.
  • Precision machined ring grooves with proper orifice/accumulator volume feature calculated groove root diameters and axial widths, providing
    excellent surface finish and flatness, maximum ring seal and minimized blow-by and oil consumption.
  • World class, ISO Certified, forging facility that utilizes the latest technologies Featuring complex forged shapes, advanced materials, and feature-aligned grain flow technology.
  • Complex Piston skirt profiles that reduce power robbing friction, yet promote stability in the bore for optimum ring seal.

ArmorGlide Skirt Coating
Wisecos new ArmorGlide skirt coating is the result of testing, development, and benchmarking through our in-house dyno program. The outcome minimized friction, maximum horsepower, and improved wear resistance.

Not only is ArmorGlide a high-tech lubricant that reduces friction, but it also allows the piston to be fitted tighter within the bore than a non-coated piston. Better ring seal reduces noise from piston rock. ArmorGlide is being applied to selected pistons.

Products specifications

Fits

Chevrolet Corvette 1970-74, Impala 1970-76, Malibu 1973-75, C1500 1990-93, Chevelle 1971-73, Blazer 1973, C10 Pickup 1973-74, Caprice 1970-76, C10 1975-80, El Camino 1970-75, K2500 1991-2000, Express 3500 1996-2000, C3500 1988-2000 + 43 more models

Bore

4.6

Comp Height

1.155

Comp Ratio @ 61CC

18.3 dome:1

Comp Ratio @ 63CC

17.8 dome:1

Comp Ratio @ 67CC

17.0 dome:1

Comp Ratio @ 80CC

14.6 dome:1

Dome Volume

4cc solid D / -6cc cut to FT

Rod

6.385

Stroke

4.5

Great Prices

Good

I just placed my order, and so far I've enjoyed my experience. The website is very easy to read, and technical assistance helped me locate my correct part. Fingers crossed it's clear sailing from here.

I really hope all of your bad reviews aren't true!

There were some communication issues at the beginning. Some confusion about order numbers and shipping led to a couple days of going back and forth with them. In the end, they made every effort to make sure I was satisfied and that my order was complete and correct. Extremely cheap price, I bet I saved almost $100 on 4 EBC rotors. My only complaint is it took almost 2 weeks for shipping, but it did ship directly from the manufacturer so I can't say that's entirely the fault of Autoplicity.<br><br>Order #28295 on 08/26/2012

You should provide more information about fitment of parts. Thanks, Jim

very good response with order but it was the wrong part that i was needing. I will be returning both temp switches this week along with the temp sensor to see if you can match up the size and thread pattern that will fit inside the block where the temp se

fast simple easy

Good place to shop, fast responce and great prices comapared anywhere.

Best total price on what i was looking for.

Good price just hope it's not too good to be true. Here's to hoping.

shopping was quick and easy!

My ARB 50qt fridge/freezer arrived quickly and it was way cheaper than anywhere else. I was a little leery only because of that. However, I received the fridge and saved about $65 over even Amazon. No problems.

Best price I've found on the ISCcoilovers

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