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F22A1: 125 hp (93.21 4 kW) @ 5200 rpm. (Accord Dx,Lx) NOTE* The 1992-1996 Prelude S had a F22A1 but because of a different more aggressively tuned ECU (P12), the power output was 135 hp (100 kW).
F22A4: 130 hp (96.94 kW) @ 5200 rpm. (Accord Ex) The F22A4 is the same motor as the F22A1 but it has slightly more power due to a tubular designed header and slightly bigger exhaust piping.
F22A6: 140 hp (104.40 kW) @ 5600 rpm.
The F22A6 is the same as the F22A1 except for a slightly more aggressive camshaft, a better flowing cast exhaust manifold, a different more aggressively tuned ECU (PT6), and a different intake manifold that utilizes IAB's and also has a bigger plenum. The F22A6 also has a windage tray in the oil pan, and stiffer valve springs to accommodate the more aggressive camshaft.
F22A7: 140 hp (104.40 kW) @ 6101 rpm
F22A1: 137 ft·lbf (186 N m) @ 4000 rpm
F22A4: 142 ft·lbf (193 N m) @ 4000 rpm
F22A6: 142 ft·lbf (193 N m) @ 4500 rpm
F22A7: 145 ft·lbf (198 N m) @ 5000 rpm
Now w/all the info in red above I'd assume the following.
I should be able to use any F22A1 & F22A4 Engine in my mom's accord to replace her dead F22A6 as long as I use the following parts from her old dead engine. Intake manifold, Cam and Rockers, Valve Springs, Distributor, Exhaust Manifold & Oil Pan
Please let me know if this is correct or is there more to it than just the add on parts i.e. berrings in the rods/Crank and Piston Rings etc etc.
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