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Potentially building a stroker J series, stock the J37A4 makes most power of na J's @ 305hp/273lb. ft. so id like to make a 3.6L+ motor and more power than that all said and done at least by a little. Closer to 400 would be nice, dont know how much its going to take to acheive that exactly.
- Main Bolt Specs
- Head Bolt Specs
- Type of VTEC & Activation RPM
- Equipped with 2-Stage Intake Manifold and Activation RPM
- Cylinder Wall Liner Material/Type
- Crankshaft Length, Main Journal/Bearing Size
- Piston to Cylinder Wall Clearence
- Mated-to Auto Transmission vs. Manual Transmission, Engine Differences (Sensors, etc.)
- Cam Lobe Specs, Overal Length, Bearing Support Size
- Combustion Chamber Volume
- Headgasket Interchangebility & Thickness
- Fuel Injector Size
- Rocker Shaft Specs, Rocker Specs, Valve Spring Specs
J32/J35/J37 Block / Crank / Compatibility:
Many have put the the j37a cranks in the j35a & j32a blocks, meaning they should have (4) 2-bolt maincaps & compatible main journals, bearings, crankshaftt length, snout specs etc.
Cranks of all 3 big displacements, aside from stroke and rod journal size, are the same between all J32/J35/J37 motors meaning Interchangeable cranks & blocks = Any J32/J35/J37 crank in any J32/J35/J37 block, Its then with that bore block and that stroke crank that you can properly select the right rod/piston combo and get it to properly work with that block/crank combo.
Basically...
J32A2
89mm Borex86mm Stroke
Big End Rod Diameter: 58.01mm
(4) 2-Bolt Mains
Crankshaft Main Journal Size Compatibility: A
J35A3
89mm Borex93mm Stroke
Big End Rod Diameter: 58.01mm
(4) 2-Bolt Mains
Crankshaft Main Journal Size Compatibility: A
J35A8
89mm Borex93mm Stroke
Big End Rod Diameter: 58.01mm
(4) 2-Bolt Mains
Crankshaft Main Journal Size Compatibility: A
J37A1
90mm Borex96mm Stroke
Big End Rod Diameter: 60.02mm
(4) 2-Bolt Mains
Crankshaft Main Journal Size Compatibility: A
J37A4
90mm Borex96mm Stroke
Big End Rod Diameter: 60.02mm
(4) 2-Bolt Mains
Crankshaft Main Journal Size Compatibility: A
Questions:
-Is the stroker J truly an n/a only concept?-Is 3.6L the only stroker option displacement wise?-What kind of compression ratio are people running?
-Is there anything good to use from J35Y and J35Z engines?
-Is it true J37a SOHC intake & exhaust VTEC heads fit J32/J35 blocks?
-Do J30AC DOHC Acura TLX Type-S and MDX Type-S heads fit the J32/J35/J37 blocks?
-Tuning VTEC?
-Anyone running a 2-stage intake system oem or modified?
Last edited by Accordian47; Apr 8, 2025 at 02:37 AM.
Reason: Stroker J - Edit
J Series stroker
