Reply With QuoteG`day ,
no , i don`t the best the i can give you is the piston top to deck is 0.020". Should add this is 4.0 , 8.23 - 1 stamp
Rod length , center to center( crank to pin )
Pin height , pin center to piston top
deck height , piston top to deck
TTDC
The MOD Father
The measurement from the crank centre to the deck of the block,,
anyone know what it is for a Thor 4.6 V8?
and/or the 4L?
"How long since you've visited The Good Oil?"
'93 V8 Rossi
'97 to '07. sold.
'01 V8 D2
'06 to 10. written off.
'03 4.6 V8 HSE D2a with Tornado ECM
'10 to '21
'16.5 RRS SDV8
'21 to Infinity and Beyond!
1988 Isuzu Bus. V10 15L NA Diesel
Home is where you park it..
[IMG][/IMG]
Wizard
SupporterG`day ,
no , i don`t the best the i can give you is the piston top to deck is 0.020". Should add this is 4.0 , 8.23 - 1 stamp
Rod length , center to center( crank to pin )
Pin height , pin center to piston top
deck height , piston top to deck
TTDC
Last edited by PLR; 9th September 2015 at 03:05 PM. Reason: ADD
The MOD Father
Thanks Peter,,
I am trying to organise Stack heights and block heights between the 4 and 4.6.
The pistons crown CC's are different and the rod lengths are also different. I'm not sure about pin height yet,,
box 2 gives some info about rod length,,
Buick 215 Rover 3.5 Land Rover 4.0 and 4.6 differences
"How long since you've visited The Good Oil?"
'93 V8 Rossi
'97 to '07. sold.
'01 V8 D2
'06 to 10. written off.
'03 4.6 V8 HSE D2a with Tornado ECM
'10 to '21
'16.5 RRS SDV8
'21 to Infinity and Beyond!
1988 Isuzu Bus. V10 15L NA Diesel
Home is where you park it..
[IMG]
Wizard
SupporterG`day ,
i did leave out ( not on purpose ) that you will also also need to add the figure for half the stroke to the total .
I think you`ll find the quench height will give the most difference . This takes into account everything above the top of the top ring to the chamber top .
Had a look at the link , close but not same as factory manual figs more middle ground . Factory also give both met imp .
Last edited by PLR; 9th September 2015 at 03:46 PM. Reason: top of the top/ look
Wizard
SupporterG`day Pedro ,
thinking about this today .
The only figure using found could be an approximate one , unless it was actually measured and then it would only be accurate for that measured .
For both 4.0 and 4.6 the figs for half the stroke , rod length c to c , half dia of gudgeon would be easy enough to find ( haven`t done but think it will give the same outcome for both ) .
A measurement from the top of the gudgeon to the piston top would be pretty easy if one had a piston .
The 020 i mention is measured .
I notice Bundalene has a set of 4.0 pistons he is selling on Ebay .
Also Garry Cole ( gone but not forgotten ) has some 4.6 pistons .
Maybe they could help you with the fig for the pin top to piston top needed if you are able to contact them .
To my knowledge the piston concave is the ratio change other than that the pistons are same .
Same rings for either/any 4.0/4.6 piston
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