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and dan, how much will it hurt IF my car is running before yours? huh huh? :P

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I should probably change my previous statement to:

Shane thinks it's an RB20

Donkey thinks it's an RB25

and Keegs thinks it's an RB24

Anyone for RB21, 22, 23, 27, 28, 29 ------

I won't know the displacement until I'm finished but I have a fair idea. It's going to be close to RB39

KTHNXBAI

hmmm. I have a 4.8 litre twin cam quad valve in line six in my 4bee Dan.

I often wonder...What if. :P

4.2L block with RB25 head. Twin cam conversion. Fark you Noel. You are the only person to guess it.

serious question...i'm gonna have a guess and say it'd be converted to solid? if so why not start with a 26 head?

The date pickers in Dubai are already doing it with the 4.8 stroked to 5 .somethin litres and making over 1000 hp with torque to make bulldozers tremble Dan.

I'm not using a 4.8. I'm converting a TD42 to twin cam RB petrol.

I'm not using a 4.8. I'm converting a TD42 to twin cam RB petrol.

TD 42 and td petrol use the same bottom end dan. the 4.5 and the 4.8 petrol jobs are also the same aprt from bore and stroke.

If you are gonna do it grab the 4.5 petrol number. Its a free 500 cc. The 4.8 would be the killer given that it already has the right head but its a bit thin on the ground.

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