243's on a 4.8?

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Jul 10, 2011 | 11:04 AM

#11

blackcash

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No such thing as too much compression.

Jul 10, 2011 | 11:50 AM

#12

02_Orange_D1SC

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From: mASSHOLE

iirc the 4.8s have flat top pistons

Jul 10, 2011 | 01:12 PM

#13

JFOLM

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Maybe I am missing something. But why would he need to mill them to get the compression of the newer 4.8's?

Jul 10, 2011 | 01:39 PM

#14

dug

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From: Phoenix

Quote:

Originally Posted by Sn0wBa11

It loves the tr220. Pulls very hard, especially up top

how high do you rev it?

Jul 10, 2011 | 01:45 PM

#15

dug

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From: Phoenix

Quote:

Originally Posted by JFOLM

Maybe I am missing something. But why would he need to mill them to get the compression of the newer 4.8's?

Im pretty sure the 243 4.8L have slightly less compression than the older 4.8L.

yeah, it might be a waste of money to swap the heads after you factor in costs of gaskets and headbolts.

Jul 11, 2011 | 11:33 PM

#16

Sn0wBa11

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From: Texarkana

Quote:

Originally Posted by dug

how high do you rev it?

6200rpm

Jul 12, 2011 | 12:44 PM

#17

dug

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From: Phoenix

Quote:

Originally Posted by Sn0wBa11

6200rpm

Seriously, thats what I have mine shifting at with the stock cam

Jul 12, 2011 | 10:15 PM

#18

Sn0wBa11

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From: Texarkana

Seriously, the powerband ends at 6500 on the tr220 and I'm spraying 150 shot. Trying to keep her in one peice. It's still got stock rod bolts in it lol