Guys, up till now i was under the impression that me little 4K had flat top pistons, so i wanted to get my hands on some dishies to lower the CR.. goin through some old threads the other day, i came pass a post explaining how to tell the diffrence between the two type of heads, via a photo, there was a shot of a 4K looking at the spark plug side, and on the two outer plugs, there was a little metal stip on the bottmem side of each hole. looking at my head today, i saw that my head hat there little stips on the outer spark plug holes, straight away took a look at my friends 4K, and he did not have them. which leads me to suspect that i have dished pistons, and he has flat tops. is this correct? so the only way i can lower the CR now is to bolt on a head from a flat top 4k..am i right so far? i got allot goin thrugh my head right now, so I'm sorry for the long post.

 

Thanks,

David

Hi David,

Yeah You're correct, the tabs under 1 & 4 indicate dishies on either a 5k or 4ku. So you can use either a normal 4kc or maybe a 3k big port head if you can find one to drop your CR.

Hi David,

Yeah You're correct, the tabs under 1 & 4 indicate dishies on either a 5k or 4ku. So you can use either a normal 4kc or maybe a 3k big port head if you can find one to drop your CR.

 

 

Hey,

off topic. i dunno if u heard, but matt went to the yard to get my 7k EFI setup, and the bloke there sold the last one.. =\ so I'm stuck, might have to make fit a manifold from another car.. (not nesseserly toyota)

 

back to topic, i know that most if not all charmants here are flat pistons, seen three already.. so I'm gonna look for a whole engine, and use the head.

 

David

HI!

HI!

 

 

^^^Wtf??