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I though it would be a good thing to start a thread where owners of stroked Pontiac engines could share their builds. I will be picking out the parts to build a stroked 400 block and would love to look through a list of builds to give me an idea of what others have successfully done.
Below is a list of engine specs that largely describe an engine build...or at least enough to make decent comparisons. If you have other specs that should be added to the list...let me know and I will add it to the list right below as we go.
If your build is not top secret, share the specs of your stroker build (as much as you know, anyhow). Feel free to link other stroker build threads or spec lists that you know of...If we get enough builds, I will compile the data in a spread sheet for easy comparisons.
Stroker Specs
1 OEM Block Size (ie 326, 389, 400, 455. etc) - 400
2 Crank Size Used (ie 400, 455, etc) - ???
3 Stroker Kit Used (ie 461, 467, 471, etc) - ???
4 Final Bore Diameter - 4.150"
5 Final Deck Height - ???
6 Piston (Type, Make & Model) - ???
7 Compression Ratio (Static) - ???
8 Compression Ratio (Dynamic) - ???
9 Heads (Make & Model) - 670 OEM
10 Head Valve Size (Intake & Exhaust) - 2.11" intake, 1.77" exhaust
11 Head Chamber Size (Actual in cc's) - 72
12 Head gasket thickness - ???
13 Intake to Head Port Matched? - Yes
14 Head to Exhaust Port Matched? - Yes
15 Intake (Make & Model) - '67 OEM 400
16 Exhaust Manifolds or Headers - Manifolds
17 Exhaust Manifolds or Headers (Make & Model) - 2.5" RA Manifolds
18 Carburetor (Make & Model) - Quadra Jet OEM
19 Cam (Make & Model) - ???
20 Cam Specs - ???
21 Rocker Ratio - ???
22 Rocker Type (Stamped or Roller) - Stamped
23 Rocker (Make & Model) - OEM
24 Push Rod Length - ???
25 Estimated Flywheel Horse Power - ???
26 Dyno'd Flywheel Horse Power - ???
27 Dyno'd Horse Power at the rear tires - ???
28 Lifter Type (Solid, Hydraulic Tappet, or Roller) - Hyd Tappet
29 Lifter (Make & Model) - ???
30 Ignition: - OEM Points
31 Fuel Octane - ???
32 How do you get to that octane (91, 93, + additive w/brand, race fuel mix, etc) - ???
The above list can be copied from this post and pasted into your post for filling the specs. The above is all I know of my build so far and I will fill it in as it becomes more compete or change my mind, as I will!
I have attached a spreadsheet with everybody's data up to July 15th, 2022. If you want the Excel spreadsheet, PM me with your email address.
Below is a list of engine specs that largely describe an engine build...or at least enough to make decent comparisons. If you have other specs that should be added to the list...let me know and I will add it to the list right below as we go.
If your build is not top secret, share the specs of your stroker build (as much as you know, anyhow). Feel free to link other stroker build threads or spec lists that you know of...If we get enough builds, I will compile the data in a spread sheet for easy comparisons.
Stroker Specs
1 OEM Block Size (ie 326, 389, 400, 455. etc) - 400
2 Crank Size Used (ie 400, 455, etc) - ???
3 Stroker Kit Used (ie 461, 467, 471, etc) - ???
4 Final Bore Diameter - 4.150"
5 Final Deck Height - ???
6 Piston (Type, Make & Model) - ???
7 Compression Ratio (Static) - ???
8 Compression Ratio (Dynamic) - ???
9 Heads (Make & Model) - 670 OEM
10 Head Valve Size (Intake & Exhaust) - 2.11" intake, 1.77" exhaust
11 Head Chamber Size (Actual in cc's) - 72
12 Head gasket thickness - ???
13 Intake to Head Port Matched? - Yes
14 Head to Exhaust Port Matched? - Yes
15 Intake (Make & Model) - '67 OEM 400
16 Exhaust Manifolds or Headers - Manifolds
17 Exhaust Manifolds or Headers (Make & Model) - 2.5" RA Manifolds
18 Carburetor (Make & Model) - Quadra Jet OEM
19 Cam (Make & Model) - ???
20 Cam Specs - ???
21 Rocker Ratio - ???
22 Rocker Type (Stamped or Roller) - Stamped
23 Rocker (Make & Model) - OEM
24 Push Rod Length - ???
25 Estimated Flywheel Horse Power - ???
26 Dyno'd Flywheel Horse Power - ???
27 Dyno'd Horse Power at the rear tires - ???
28 Lifter Type (Solid, Hydraulic Tappet, or Roller) - Hyd Tappet
29 Lifter (Make & Model) - ???
30 Ignition: - OEM Points
31 Fuel Octane - ???
32 How do you get to that octane (91, 93, + additive w/brand, race fuel mix, etc) - ???
The above list can be copied from this post and pasted into your post for filling the specs. The above is all I know of my build so far and I will fill it in as it becomes more compete or change my mind, as I will!
I have attached a spreadsheet with everybody's data up to July 15th, 2022. If you want the Excel spreadsheet, PM me with your email address.
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