What is the c.i. ?
454 standard crank , 4.320 bore . (.070)
If : .030 is 460
......060 is 468

......070 is ???

Bore x bore x stroke x .7854 x 8 = CI

quote:

Originally posted by CURTIS REED:
Bore x bore x stroke x .7854 x 8 = CI

Oh I want a number. I don't wanna do all that lol

Well then, if you're going to be laze you have to give all the relevant numbers. I don't know what a stock 454 stroke is. LOL

.070 is needing a new block unless you want cracked cylinders and water leaking in

quote:

Originally posted by CURTIS REED:
Well then, if you're going to be laze you have to give all the relevant numbers. I don't know what a stock 454 stroke is. LOL

Agreed. For the amount of time it took the OP to post this he could have googled it, entered the values and had his answer.

Got it . It's 473.1

quote:

Originally posted by CURTIS REED:
Well then, if you're going to be laze you have to give all the relevant numbers. I don't know what a stock 454 stroke is. LOL

4"

469.

I always used 1/2 bore squared x 3.14 x stroke x # of cyl.Thewn nobody use same formula for compression as I do.

Curtis just figured do math for you. You get answer, teach you math and you will always have answer

469

quote:

Originally posted by rusty:
469

0.060 is 468

A .070" overbore on a stock 454 Chevy big-block engine (4.250" bore) results in a 4.320" bore, increasing the displacement to approximately 476 cubic inches.

Enter The Bore: MM
109.728
Inches
4.320
Enter The Stroke: MM
101.6
Inches
4.0
Enter Number of cylinders:
8
Calculate
Engine is 469.04 CID or 7.7 liters
this is what i was going by

quote:

Originally posted by W.A.O. 111:
A .070" overbore on a stock 454 Chevy big-block engine (4.250" bore) results in a 4.320" bore, increasing the displacement to approximately 476 cubic inches.

Enter The Bore: MM
109.47399999999999
Inches
4.310
Enter The Stroke: MM
101.6
Inches
4.0
Enter Number of cylinders:
8
Calculate
Engine is 466.87 CID or 7.7 liters

The formula for volume of a cylinder is: V=pi*r^2*h where r is half the bore and h is the stroke. Then multiply by 8 cylinders.

Sharpen that pencil! If you are involved with the builds you have to know numbers.

quote:

Originally posted by BP758:

Sharpen that pencil! If you are involved with the builds you have to know numbers.

I'll call it a 469.4 ci