Toyota 4AGE 1.6L DOHC 81.5mm-82.0mm, 8.2-9.0-9.5:1, Turbo Charged-Nitrous, 20.0mm pin

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Toyota 4AGE 1.6L DOHC        88-92 MR2 
Stock Bore: 3.189, 81mm   Stroke: 3.031   Rod: 4.804   Head cc: 36.0   Gasket: .048   Deck: .000
Bore Comp. Dome Compression Ratio Gram Part Required
in/mm Height CC w/ Stock Head  Wt. Number Ring Set
Dome top           Turbo/Nitrous
3.209 / 81.50 1.201-30.50 -13.8 8.2 278 AP331669 1515403209
3.209 / 81.50 1.201-30.50 -7.9 9 290 3721020 1212303209
3.209 / 81.50 1.201-30.50 -4.8 9.5 289 3721070 1212303209
3.2283 / 82.00 1.201-30.50 -5.5 9.5 TBD 3721090 1212303228

 Piston kit includes premium conventional rings, std pins, pin keepers

***It will take 2-3 weeks to make when out of stock