Bigger Is Better Posted March 30, 2007 Report Share Posted March 30, 2007 Hi Guys, Just wondering if anyone on this forum has any idea about mods on a 21r engine. Do 18r heads fit, are there alternate pistons. Has anyone built a 21R before and what did they use. I'm building it into a race engine for my corolla. I don't want to go down the 4AGE road as i want to run a 2 litre class and the car is already fitted with this engine Cheers Josh Quote Link to comment Share on other sites More sharing options...
anastasios Posted March 30, 2007 Report Share Posted March 30, 2007 I'm pretty sure u can use an 18r head, ive reasearched this before try google Quote Link to comment Share on other sites More sharing options...
Des Posted March 30, 2007 Report Share Posted March 30, 2007 18rgu or 18rgeu is a 2.0litre twincam, they go pretty good stock and would suit a racer with some mods. Quote Link to comment Share on other sites More sharing options...
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