Quick Answer: What Size Is A 454 Bored 30 Over?

Are all 454 blocks the same?

The 427 and 454 have the same bore (4.25in), thus, any 427 low deck block can be built as a 454 simply by using the 454 crank (4.00in stroke).

Some 427s and 454s have 4bolt main caps (and there were a few 4bolt hi-perf 396s), but, the blocks are still the same..

What is a 496?

A 496 is a bored and stroked 454. The 496 is made by boring a 454 block . 060 over and adding a 4.25″ stroke crankshaft.

How much does it cost to build a 496 stroker?

Build A Pump-Gas 496-Cube Stroker Big-Block On A $5,500 Budget.

What is the most you can bore a 454?

Maximum bore size is 4.625 inches, and the minimum cylinder wall thickness is . 240 inch at 4.600 inches.

How big can you stroke 454?

4.25What’s the max you can stroke a 454 and what are the specifications? The commonly accepted limit is 4.25 with steel rods. If you’re talking about a GM MK IV block, the most common is a 496. 4.310 bore, 4.250 stroke.

What is a 496 stroker?

The 496 stroker HP high performance crate engine includes forged pistons, 4340 rods and HP aluminum heads so you don’t have to give up quality to get a big block at an economical price.

What is the difference between a 454 and 502?

I Love This Stuff! Thanks to all your help I now know that the difference between a 454 and a 502 is the bore. The strokes for boh are 4.00″ but the bore of a 454 is 4.25″ and the bore of the 502 is 4.466″.

How much horsepower does a 496 stroker have?

575 HPGM 496 Stroker Base Engine Aluminum Heads Roller Cam HP & Torque: 575 HP / 570 FT LBS – American Powertrain.

What is a 454 bored .060 over?

A 454 that is . 060 over comes out to 466.9, 467ci. Most call it a 468 but I like the exact number, 467 just sounds cool, like its smaller cousin.

How do you make a 496 out of a 454?

Take a 454, add a 4.250-inch stroke crank along with some 6.385-inch rods and your displacement shoots up to 489 cubes. Now bore those cylinders out a touch, to say . 060-inch over and you end up with the venerable 496.

How can I get more horsepower out of my 454?

How Do I Get More Power out of a Chevy 454?Improve the fuel and air intake system. The more fuel and air you are able to get into your Chevy big block engine, the more power it will be able to produce. … Replace the stock exhaust system with a high-flow system. … Replace the stock timing parts with ones tuned for racing. … Bolt on a supercharger.

How much horsepower can a stock 454 block handle?

MonzaRacer. As for big block Chevy a factory 2 bolt 454/427/402 block with out large over bores will easily and safely handle 700+hp/torque, and never discount the cast cranks As I have seen 600-700 hp on cast cranks, they just dont like shock loading quite as much as sbc will take,,tend to have reliability issues.