I just bought a 1989 Civic, the engine has been modified...?

Question

I bought a 1989 Civic with a 1989 CRX engine and tranny, the engine has been bored 75 over and it has oversized pistons and the head has been decked, some people have told me it is now a 1.8L with the boring out of the cylinders, is this accurate? The thing pulls hard to 7000rpms, is it possible to be around 140-150 horse?

D16A6
Found in:
1988-1991 Honda Civic Si, CRX Si, Civic Wagon RT4WD

Displacement : 1590 cm3
Bore and Stroke : 75 mm X 90 mm
Compression : 9.6:1
Power : 118 hp @ 6000 rpm & 100 ft·lbf @ 5000 rpm
Valvetrain : SOHC
Fuel Control : OBD-0 MPFI

Answer 1

This wont be too much help, but here goes:
If you do a search here at Yahoo answers for engine displacement, you should find one question (from me) and answer about that. There is a formula to find out how many horses you have, bore x stroke x something x #cylinders...= horsepower

Answer 2

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