GM 383 c.i. Stroker
- Horsepower
- 436 hp
- Torque
- 443 lb-ft
- Peak rpm
- 5,400
- Dress
- Base dressed
The volume build: hydraulic roller cam, aluminum heads, four-bolt main block.
from $7,599

Proven on the Dyno.
From our own blocks, heads, cranks and rods to final dyno testing, we control the engine from design through proof. 400,000+ engines later, the scale has changed. The accountability hasn’t.
Four-car garage, Kearney NE
Across four decades
Kearney, Nebraska
Every engine, before it ships
Around 1,500 components in a BluePrint engine were designed or re-engineered in house. That is the difference between selling an engine and being responsible for one.
Full capabilities →Blocks, cylinder heads, cranks, rods and oil pans are designed and built in-house — roughly 1,500 components engineered or re-engineered rather than bought off a shelf.
Where no production machine did what a tolerance required, we designed and patented our own. Process control starts with the equipment, not the inspection at the end.
Balance, clearance and surface finish are held to a written spec on every unit, not sampled. That is what makes 400,000 engines behave like one engine.
Our Origin Engines division supplies powerplants for gensets, forklifts and wood chippers — duty cycles that punish anything built to a marketing number.

Not a sample from the batch — every unit. Rotating assemblies are balanced within two grams of spec, engines are run on the dyno, and complete engines carry a 30-month / 50,000-mile parts-and-labor warranty that transfers with the vehicle.
The volume build: hydraulic roller cam, aluminum heads, four-bolt main block.
from $7,599
Aluminum LS block and heads, fabricated intake, calibrated ECU. Swap-ready.
from $13,799
10.1:1 compression, .647 lift roller cam, aluminum oval-port heads.
from $16,099
Engine Match is our catalog and our build logic in one conversation — it reasons the way our specialists do, recommends only engines we actually make, and tells you what else the swap needs. Then a real person picks it up from there.
Whether it is a 383 for a weekend car or a duty-cycle problem nobody else wants, start with a phone call. Mon – Fri · 8:00 a.m. – 5:00 p.m. CST.
Talk to an engine specialist — not a call center.
Mon – Fri · 8:00 a.m. – 5:00 p.m. CST