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Australian 998 Cooper motor

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drmini in aust

Post subject: Re: Australian 998 Cooper motor

Posted: Thu Mar 03, 2016 5:59 am

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39755
Location: near Baulkham Hills, NSW

D top pistons were needed with the 998 as the 100cc less displacement would give a lower C/R with flat tops.

[edit] 295 head has a BIG chamber.
Note early 1098 Sprites had the 12G202 head (as did the 997 Cooper).

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

Last edited by drmini in aust on Thu Mar 03, 2016 7:01 am, edited 1 time in total.

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timmy201

Post subject: Re: Australian 998 Cooper motor

Posted: Thu Mar 03, 2016 6:43 am

1275cc

Joined: Sun Apr 29, 2012 1:19 pm
Posts: 4501
Location: Wollongong, NSW

The 295 works perfectly with a 1098 engine, it's almost as though it was designed for it... It was used in the MG1100 (and Sprite?) before the Cooper

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jimb

Post subject: Re: Australian 998 Cooper motor

Posted: Fri Mar 04, 2016 4:23 pm

848cc

Joined: Fri Sep 06, 2013 7:21 pm
Posts: 46
Location: Sydney

Hi Wild willy, Yes my Cooper engine did come with a 295 head fitted. The engine and head have been modified and rebuilt with GR bits. Am pleased to say another Cooper 998 has been saved. JimB.

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wild_willy

Post subject: Re: Australian 998 Cooper motor

Posted: Sat Mar 05, 2016 12:57 pm

998cc

Joined: Tue Sep 06, 2005 6:20 pm
Posts: 637
Location: Melbourne

jimb wrote:

Hi Wild willy, Yes my Cooper engine did come with a 295 head fitted. The engine and head have been modified and rebuilt with GR bits. Am pleased to say another Cooper 998 has been saved. JimB.

Excellent! Well done JimB. Only about 35 998's on the register too!!!!!

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