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-   -   In-Depth F and H-Series Motor Specs (http://www.hondashowoff.com/forums/showthread.php?t=12491)

clyde004 12-22-2007 04:58 PM

In-Depth F and H-Series Motor Specs
 
I believe that this information would be very beneficial to those trying to buy parts for internal builds, head swaps, etc...for example, those looking for rods for the F22B1 and can't find them...but can find rods for the more popular H23 models...they actually have the same specs!

Information courtesy of the Honda-Tech Forums (www.honda-tech.com)....

Block Specs:

<table border="1" cellspacing="1" cellpadding="1" width="294" height="224" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Engine<br /></strong></td><td align="center"><strong>Block Type<br /></strong></td><td align="center"><strong>Deck Height<br /></strong></td><td align="center"><strong>Bore<br /></strong></td></tr><tr><td align="center">F20A<br /></td><td align="center">Open Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">85mm/3.346<br /></td></tr><tr><td align="center">F20B<br /></td><td align="center">Open Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center"> 85mm/3.346 </td></tr><tr><td align="center">F22A<br /></td><td align="center">Open Deck</td><td align="center">219.5mm/8.643<br /></td><td align="center">85mm/3.346<br /></td></tr><tr><td align="center">F22B<br /></td><td align="center">Open Deck</td><td align="center">219.5mm/8.643<br /></td><td align="center">85mm/3.346<br /></td></tr><tr><td align="center">F22B1<br /></td><td align="center">Open Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">85mm/3.346<br /></td></tr><tr><td align="center">F22B2<br /></td><td align="center">Open Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">85mm/3.346</td></tr><tr><td align="center">F23A<br /></td><td align="center">Open Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">86mm/3.385<br /></td></tr><tr><td align="center">H22A<br /></td><td align="center">Closed Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">87mm/3.425<br /></td></tr><tr><td align="center">H22A1<br /></td><td align="center">Closed Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">87mm/3.425<br /></td></tr><tr><td align="center">H22A4<br /></td><td align="center">Open Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">87mm/3.425<br /></td></tr><tr><td align="center">H23A<br /></td><td align="center">Open Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">87mm/3.425<br /></td></tr><tr><td align="center">H23A1<br /></td><td align="center">Closed Deck<br /></td><td align="center">219.5mm/8.643<br /></td><td align="center">87mm/3.425</td></tr></tbody></table>

Rod Specs:

<table border="1" cellspacing="1" cellpadding="1" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Engine<br /></strong></td><td align="center"><strong>Rod Length<br /></strong></td><td align="center"><strong>Rod Width</strong></td><td align="center"><strong>Main Bore<br /></strong> </td><td align="center"><strong>Pin Bore<br /></strong></td></tr><tr><td align="center">F20A<br /></td><td align="center">145.0mm/5.709<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">???<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">F20B<br /></td><td align="center">145.0mm/5.709<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">48.00mm/1.890<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">F22A<br /></td><td align="center">141.5mm/5.572<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">F22B<br /></td><td align="center">141.5mm/5.572<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">F22B1<br /></td><td align="center">141.5mm/5.572<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">F22B2<br /></td><td align="center">141.5mm/5.572<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">F23A<br /></td><td align="center">141.0mm/5.551<br /></td><td align="center">19.81mm/0.780<br /></td><td align="center">48.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">H22A<br /></td><td align="center">143.0mm/5.633<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">H22A1<br /></td><td align="center">143.0mm/5.633<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">H22A4</td><td align="center">143.0mm/5.633<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">H23A<br /></td><td align="center">141.5mm/5.572<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr><tr><td align="center">H23A1<br /></td><td align="center">141.5mm/5.572<br /></td><td align="center">23.75mm/0.935<br /></td><td align="center">51.00mm/2.008<br /></td><td align="center">21.97-21.98mm/.8649-.8654</td></tr></tbody></table>

Piston Specs:

<table border="1" cellspacing="1" cellpadding="1" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Engine<br /></strong></td><td align="center"><strong>Bore<br /></strong></td><td align="center"><strong>Compression Height<br /></strong></td><td align="center"><strong>Piston Volume<br /></strong></td><td align="center"><strong>Wrist Pin Diameter<br /></strong></td></tr><tr><td align="center">F20A<br /></td><td align="center"> 85mm/3.346</td><td align="center">???<br /></td><td align="center">-4.7 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">F20B<br /></td><td align="center">85mm/3.346</td><td align="center">31.0mm/1.221<br /></td><td align="center">+8.0 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">F22A<br /></td><td align="center">85mm/3.346</td><td align="center">30.5mm/1.203</td><td align="center">-14.5 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">F22B<br /></td><td align="center">85mm/3.346</td><td align="center">30.5mm/1.203</td><td align="center">-11.2 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">F22B1<br /></td><td align="center">85mm/3.346</td><td align="center">30.5mm/1.203</td><td align="center">-14.5 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">F22B2<br /></td><td align="center">85mm/3.346</td><td align="center">30.5mm/1.203</td><td align="center">-14.5 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">F23A<br /></td><td align="center">86mm/3.385</td><td align="center">30.0mm/1.181<br /></td><td align="center">-18.0 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">H22A<br /></td><td align="center">87mm/3.425</td><td align="center">31.0mm/1.221</td><td align="center">-1.9 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">H22A1<br /></td><td align="center">87mm/3.425</td><td align="center">31.0mm/1.221</td><td align="center">+4.2 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">H22A4</td><td align="center">87mm/3.425</td><td align="center">31.0mm/1.221</td><td align="center">-1.8 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr style="background-color: #ffffff"><td align="center">H22A Type S</td><td align="center">87mm/3.425<br /></td><td align="center">31.0mm/1.221<br /></td><td align="center">+4.2 cc<br /></td><td align="center">22.0mm/.866&nbsp;</td></tr><tr><td align="center">H23A<br /></td><td align="center">87mm/3.425</td><td align="center">30.5mm/1.203<br /></td><td align="center">-1.8 cc<br /></td><td align="center">22.0mm/.866<br /></td></tr><tr><td align="center">H23A1<br /></td><td align="center">87mm/3.425</td><td align="center">30.5mm/1.203</td><td align="center">+4.3 cc<br /></td><td align="center">22.0mm/.866</td></tr></tbody></table>

Crankshaft Specs:

<table border="1" cellspacing="1" cellpadding="1" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Engine<br /></strong></td><td align="center"><strong>Stroke<br /></strong></td><td align="center"><strong>Main Journal Diameter<br /></strong></td><td align="center"><strong>Rod Journal Diameter<br /></strong></td></tr><tr><td align="center">F20A<br /></td><td align="center">88.0mm/3.464<br /></td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888<br /></td></tr><tr><td align="center">F20B<br /></td><td align="center">88.0mm/3.464<br /></td><td align="center">55mm<br /></td><td align="center">44.98mm/1.771<br /></td></tr><tr><td align="center">F22A<br /></td><td align="center">95.0mm/3.740<br /></td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">F22B<br /></td><td align="center">95.0mm/3.740</td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">F22B1<br /></td><td align="center">95.0mm/3.740</td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">F22B2<br /></td><td align="center">95.0mm/3.740</td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">F23A<br /></td><td align="center">97.0mm/3.818<br /></td><td align="center">55mm<br /></td><td align="center">44.98mm/1.771</td></tr><tr><td align="center">H22A<br /></td><td align="center">90.7mm/3.570</td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">H22A1<br /></td><td align="center">90.7mm/3.570</td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">H22A4<br /></td><td align="center">90.7mm/3.570</td><td align="center">50mm (1997), 55mm (98-01)<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">H23A<br /></td><td align="center">95.0mm/3.740<br /></td><td align="center">55mm<br /></td><td align="center">47.95mm/1.888</td></tr><tr><td align="center">H23A1<br /></td><td align="center">95.0mm/3.740<br /></td><td align="center">50mm<br /></td><td align="center">47.95mm/1.888</td></tr></tbody></table>

Cylinder Head Specs:

<table border="1" cellspacing="1" cellpadding="1" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Engine<br /></strong></td><td align="center"><strong>Head Volume<br /></strong></td><td align="center"><strong>Intake Valve Diameter<br /></strong></td><td align="center"><strong>Exhaust Valve Diameter<br /></strong></td></tr><tr><td align="center">F20A<br /></td><td align="center">50.0 cc<br /></td><td align="center">34mm/1.34</td><td align="center">29mm/1.14</td></tr><tr><td align="center">F20B<br /></td><td align="center">???<br /></td><td align="center">34mm/1.34</td><td align="center">29mm/1.14</td></tr><tr><td align="center">F22A<br /></td><td align="center">50.5 cc<br /></td><td align="center">34mm/1.34</td><td align="center">29mm/1.14</td></tr><tr><td align="center">F22B<br /></td><td align="center">50.5 cc<br /></td><td align="center">34mm/1.34</td><td align="center">29mm/1.14</td></tr><tr><td align="center">F22B1<br /></td><td align="center">50.6 cc<br /></td><td align="center">34mm/1.34</td><td align="center">29mm/1.14</td></tr><tr><td align="center">F22B2<br /></td><td align="center">50.6 cc<br /></td><td align="center">34mm/1.34</td><td align="center">29mm/1.14</td></tr><tr><td align="center">F23A<br /></td><td align="center">???<br /></td><td align="center">34mm/1.34</td><td align="center">29mm/1.14</td></tr><tr><td align="center">H22A<br /></td><td align="center">53.8 cc<br /></td><td align="center">35mm/1.38<br /></td><td align="center">30mm/1.18<br /></td></tr><tr><td align="center">H22A1<br /></td><td align="center">53.8 cc<br /></td><td align="center">35mm/1.38</td><td align="center">30mm/1.18</td></tr><tr><td align="center">H22A4</td><td align="center">53.8 cc<br /></td><td align="center">35mm/1.38</td><td align="center">30mm/1.18</td></tr><tr><td align="center">H23A<br /></td><td align="center">53.8 cc<br /></td><td align="center">35mm/1.38</td><td align="center">30mm/1.18</td></tr><tr><td align="center">H23A1<br /></td><td align="center">50.0 cc<br /></td><td align="center">34mm/1.34<br /></td><td align="center">29mm/1.14</td></tr></tbody></table>

Head Gasket Specs:

*Note: Gasket thickness measured after crush

<table border="1" cellspacing="1" cellpadding="1" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Engine<br /></strong></td><td align="center"><strong>Bore<br /></strong></td><td align="center"><strong>Thickness<br /></strong></td></tr><tr><td align="center">F20A<br /></td><td align="center">85.5mm/3.37<br /></td><td align="center">0.66mm/.026<br /></td></tr><tr><td align="center">F20B<br /></td><td align="center">85.5mm/3.37</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">F22A<br /></td><td align="center">85.5mm/3.37</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">F22B<br /></td><td align="center">85.5mm/3.37</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">F22B1<br /></td><td align="center">85.5mm/3.37</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">F22B2<br /></td><td align="center">85.5mm/3.37</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">F23A<br /></td><td align="center">86.5mm/3.41<br /></td><td align="center">0.66mm/.026</td></tr><tr><td align="center">H22A<br /></td><td align="center">88.0mm/3.46<br /></td><td align="center">0.66mm/.026</td></tr><tr><td align="center">H22A1<br /></td><td align="center">88.0mm/3.46</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">H22A4<br /></td><td align="center">88.0mm/3.46</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">H23A<br /></td><td align="center">88.0mm/3.46</td><td align="center">0.66mm/.026</td></tr><tr><td align="center">H23A1<br /></td><td align="center">88.0mm/3.46</td><td align="center">0.66mm/.026</td></tr></tbody></table>

Bearing Specs:

<table border="1" cellspacing="1" cellpadding="1" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Bearing Color<br /></strong></td><td align="center"><strong>Main Bearing Thickness<br /></strong></td><td align="center"><strong>Rod Bearing Thickness<br /></strong></td></tr><tr><td align="center">Black<br /></td><td align="center">2.010-2.007mm/0.0791-0.0790</td><td align="center">1.507-1.504mm/0.0593-0.0592</td></tr><tr><td align="center">Blue </td><td align="center">2.013-2.010mm/0.0793-0.0791</td><td align="center">1.510-1.507mm/0.0594-0.0593</td></tr><tr><td align="center">Brown<br /></td><td align="center">2.007-2.004mm/0.0790-0.0789</td><td align="center">1.504-1.501mm/0.0592-0.0591</td></tr><tr><td align="center">Green<br /></td><td align="center">2.004-2.001mm/0.0789-0.0788</td><td align="center">1.501-1.498mm/0.0591-0.0590</td></tr><tr><td align="center">Pink<br /></td><td align="center">1.998-1.995mm/0.0787-0.0785</td><td align="center">1.495-1.492mm/0.0589-0.0587</td></tr><tr><td align="center">Red<br /></td><td align="center">1.995-1.992mm/0.0785-0.0783</td><td align="center">1.492-1.489mm/0.0587-0.0586</td></tr><tr><td align="center">Yellow<br /></td><td align="center">2.001-1.998mm/0.0788-0.0787</td><td align="center">1.498-1.495mm/0.0590-0.0589</td></tr></tbody></table>

<table border="1" cellspacing="1" cellpadding="1" style="background-color: #ffffff"><tbody><tr style="background-color: #ffff33"><td align="center"><strong>Engine<br /></strong></td><td align="center"><strong>Main Bearing Width<br /></strong></td><td align="center"><strong>Rod Bearing Width<br /></strong></td></tr><tr><td align="center">F20A<br /></td><td align="center">19.9mm/.784<br /></td><td align="center">19.35mm/.762<br /></td></tr><tr><td align="center">F20B<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">F22A<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">F22B<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">F22B1<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">F22B2<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">F23A<br /></td><td align="center">19.9mm/.784</td><td align="center">15.47mm/.609<br /></td></tr><tr><td align="center">H22A<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">H22A1<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">H22A4<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">H23A<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr><tr><td align="center">H23A1<br /></td><td align="center">19.9mm/.784</td><td align="center">19.35mm/.762</td></tr></tbody></table>

Now all we need is some type of displacement calculator or theorem for calculating displacement with mixed specs...such as my F23 block with an F22B1 head! You'd think that there should be some way of calculating that information with all of these factory specs...


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