Hey, just wondering if someone would identify this K series head for me? Is it a ke70 4k head maybe? It has a fair few differences to my ke55 4k and I have circled some of them..

 

Any help would be good as I am trying to figure out weather this head is worth cleaning up or not...

 

 

 

Thanks.

looks like a 5k head. threaded holes near the exhaust ports for the egr

interesting so it's not really any use on a 4k?

5k head on a 4k block will dramatically increase the compression ratio and will turn it into a VERY angry motor with a huge cam

ok thanks evan

It looks like it's got an early 3k rocker cover though. Only one breather/pcv hole.

 

Stu.

That lower thermostat housing (circled)is an early ke70 unit, Nov 81 to Sept 83

as it has those vacuum ports like mine has. As Evan pointed out there are threaded

holes for egr in the head itself, but its not a 5k head. That is a 4k head from a km20 Toyota Liteace as it was fitted with "air injection" which was run off an airpump. As opposed to

an egr valve local ke70 4ks had.

hmm I knew it was something a bit different haha.. Thanks for the info. After closer inspection the head is unusable and has been binned (all the bolts were seized and were snapping off!) :blinks:

That lower thermostat housing (circled)is an early ke70 unit, Nov 81 to Sept 83

as it has those vacuum ports like mine has. As Evan pointed out there are threaded

holes for egr in the head itself, but its not a 5k head. That is a 4k head from a km20 Toyota Liteace as it was fitted with "air injection" which was run off an airpump. As opposed to

an egr valve local ke70 4ks had.

The 5k i have has a similar style head. And it came with the air injection crap, except for the air pump.

Hey any change of a photo the the combustion chamber

The 5k i have has a similar style head. And it came with the air injection crap, except for the air pump.

Spot on, all the commercial vehicles assembled in Japan were equipped with that type

of emission setup. The old km20 Liteace we owned had the belt driven airpump disconnected

but somehow the vacuum through the air injection ports caused the belt pulley to spin..

Spot on, all the commercial vehicles assembled in Japan were equipped with that type

of emission setup. The old km20 Liteace we owned had the belt driven airpump disconnected

but somehow the vacuum through the air injection ports caused the belt pulley to spin..

 

Has anyone used this pump to create a vacum in the sump ?

ive heard people use them as superchargers on like 50cc-100cc motorbike engines