4.8/5.3 pistons?

Reply Subscribe

Thread Tools

Search this Thread

Jun 12, 2006 | 10:41 PM

dirt track racer 81

Thread Starter

TECH Senior Member

iTrader: (45)

Joined: Jun 2005

Posts: 9,439

Likes: 13

From: Hennessey, Oklahoma

4.8/5.3 pistons?

i think i remember readin that the 5.3's had dished pistons and the 4.8's had flat top pistons?? is that true or they both the same? if the 4.8's are flat top how much would that raise the compression in a 5.3?

Jun 12, 2006 | 10:47 PM

FarmerBeau

Sexy Party Mod

iTrader: (2)

Joined: Mar 2005

Posts: 5,429

Likes: 0

From: Spring, Texas

True about the pistons. I thought i saw something about the compression being 10.3:1 or so but dont quote me on that.

Jun 12, 2006 | 10:48 PM

1slow01Z71

Tin Foil Hat Wearin' Fool

iTrader: (36)

Joined: Oct 2004

Posts: 23,204

Likes: 4

From: Austin, TX

Easier to mill the heads

Jun 12, 2006 | 10:52 PM

FarmerBeau

Sexy Party Mod

iTrader: (2)

Joined: Mar 2005

Posts: 5,429

Likes: 0

From: Spring, Texas

or if you have the block out in the first place throw a set of forged pistons and arp rod bolts then spray the **** out of it!

Jun 12, 2006 | 11:12 PM

whitt1

TECH Junkie

Joined: Mar 2002

Posts: 3,019

Likes: 1

From: memphis tn

The pin positions are different,different length rods,so you can't use 4.8 pistons with a 5.3 crank.

Jun 12, 2006 | 11:31 PM

Z284thgen

11 Second Club

iTrader: (46)

Joined: Oct 2002

Posts: 1,598

Likes: 0

From: tulsa ok

Quote:

Originally Posted by whitt1

The pin positions are different,different length rods,so you can't use 4.8 pistons with a 5.3 crank.

the crank is the same there all 3.622 to my knowledge

4.8 has a 6.2 rod with a flat top

Jun 13, 2006 | 07:24 AM

TurboGibbs

TECH Senior Member

iTrader: (6)

Joined: Jul 2005

Posts: 5,257

Likes: 0

From: Decatur, AL

And yes the pin heights are different between the 4.8 & 5.3.

4.8/5.3 pistons?

4.8/5.3 pistons?

Trending Topics