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Location: Sydney
Registered: May 2003
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Location: Brisbane
Registered: October 2002
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Re: 18rg head on 22r block
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Mon, 22 August 2005 20:14
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wont work, just put the 22R crank and 16R rods in the 18RG block to stroke it
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Location: Sydney
Registered: May 2003
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Location: Canberra
Registered: July 2005
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Re: 18rg head on 22r block
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Tue, 23 August 2005 04:28
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Please don't stroke it!! It removes all revving characteristics of the engine, and basically you have a 22R with a flowing head. I know for sure that I prefer driving my 18RG RA23 to my Dad's 22R 'lux.
If u wanna larger capacity RG, you can bore it out to 2.2L (92mm I think) with no ill effects. The problem with this, however, is you need new, probably custom pistons ($$$). If you stroke it, it will be 2.4L, will have boatloads of low end torque, but it won't be revvy like an RG.
PS i dunno what your appplication is, and if it's in a hilux, the stroked option would be significantly better.
Keep us posted on your progress!
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Location: Sydney
Registered: May 2003
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Location: Brisbane
Registered: May 2002
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Re: 18rg head on 22r block
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Tue, 23 August 2005 04:41
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Longer stroke means higher piston speeds. Shorter rods means higher side-loading on the pistons. Both are bad news for revs.
Solution: 18R-G with SC14 blower. Revs nicely AND has boatloads of torque.
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Location: Canberra
Registered: July 2005
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Re: 18rg head on 22r block
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Tue, 23 August 2005 08:45
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yep, you def want torque, but a stroked RG will rev roughly the same as a 22r. Norbie's suggestion holds some serious meat, however! (such plans lead me to beleive it's an omen that my 18RG has a double row crank pulley )
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Location: Tamworth
Registered: August 2004
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Re: 18rg head on 22r block
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Tue, 23 August 2005 09:44
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There different spec twin cam heads.
There is many different casting numbers
Castings numbers in order from best to worst, in my opinion
88270
88253
88250
these are the best 3 to use.
There are many more earlier versions. If u want to use stock cams use the cams from an 88210 or 88230.
All of them ca be used on the 18r block.
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