Engine Swapping

[H22JET]

I have a D15B7 engine in my 1993 Civic and have done Head gasket, Timing Belt, Water Pump, Hoses, Thermostat, Engine and Transmission Service Recently so big $$$$ spent. But ther motor is very sick, loses power after 30 minutes of driving so throttle haves to be stepped on more and it gets tired :(

Now I got a D16Y1 Block of a EG Civic and a D16 Head (non Vtec) off a standard 1997 EK1 Civic, I am thinking of taking out my sick engine and putting the new head and block in???

Yes I know everyone is going to say do a VTEC Swap but I already have a Prelude and just need this civic for normal driving so no modifications required

any tips help will be great

[butterfingers]

if you serviced it regularly why would the motor be sick?

[H22JET]

i did buy the car at 163,000ks who knows if they are fake kilometres too, car just seems to have lost alot of power then what it had when I first bought it, i was driving it alot when it was overheating for a couple of weeks so that could have had damaged internal parts who knows?

[butterfingers]

compression test then if things turn out bad then you have 2 options

rebuild
d16 implant

whichever is cheaper as a d16y1 is barely an upgrade considering the trouble and labour involved. how many kms does the d16 have on it?

[H22JET]

im not sure how much the d16 has on it, but apparently it has being rebuilt, and the EK Head has only 100.000ks on it driven by a grandpa car in the past.
im sure a d16y1 has better power than a standard d15 lol, i can do it myself with a couple of mates so no labour charges

[dorikin]

Bolt the EK head to the D16Y1 block and re-use your D15B7 ancillaries (distributor, injectors, alternator).

This way you can keep your original OBD1 D15B engine loom. Also need new ECU.

[H22JET]

will the plugs and leads be the same size or different? what about my timing belt and water pump?
I heard you can run it off the same ECU, i just want a reliable engine thats all, not changing everything