which piston is this?

[ditn]

Which piston is this?(smallport?)
Found it together with a 40mm crankshaft in a blacktop

[driftmaniacae86]

i think its from big port
pistons pin 18 crack 40 = big port blue or red valve cap
pistons pin 20 crack 42 = small port only red valve cap v same is 4agze supercharger 2 gen 3 gen
not 1 gen is the same with big port
thats i know i hopre hepl u

[ditn]

thanks for info

Forgot to add some extra info.
the pin is 20
the crank is 40 100% sure

So maybe late bigport or i mismeasured the pin
But how can this be in a blacktop 4age? thats the mystery i dont understand

[Bean]

Not a genuine Toyota 16V piston, maybe Honda?

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[ditn]

Hm this is getting weirder and weirder
Aftermarket not possible?
How can honda pistons work with a blacktop?

[Bean]

(06-27-2014 10:23 PM)ditn Wrote:  Hm this is getting weirder and weirder
Aftermarket not possible?
How can honda pistons work with a blacktop?

I never exactly looked into it but apparently there's a compatible piston from Honda with almost the same specs.

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[zenki]

4afe with the same piston

[ditn]

aha ok thanks.
Is a 4afe crank usuable in a 4age?

[fax0815]

Yep, its a 4AFE piston, unfortunatly they are pressfit wristpin like the bluetop engine. They are low comp so maybe someone was trying to build a turbo engine?

Crank can be used, only downside whould be the 6bolt crank unstead of 8 bolt on 4AGE´s.

[ditn]

(07-01-2014 03:33 AM)fax0815 Wrote:  Yep, its a 4AFE piston, unfortunatly they are pressfit wristpin like the bluetop engine. They are low comp so maybe someone was trying to build a turbo engine?

Crank can be used, only downside whould be the 6bolt crank unstead of 8 bolt on 4AGE´s.

ok thanks for the answer
Hm maybe its weird.

Hm unless im mistaken the crank actually was 8 bolts since it was a blacktop flywheel need to check