Aircooled Engine Build Services

Platinum Edition 2007cc - 2387cc

Basic High Performance Edition 1679(TW)cc - 1914cc

Platinum Edition 2007cc - 2387cc

Built by Professional Race Engine Shops partnership of VintageFlat4

New or Highly Modified German Engine Case w/ all new bearings. If original German Case is used then All Oil Galleys Opened & Tapped.
Dynamically Balanced Internal Rotation Assembly
Balanced Connecting Rods & Pistons.
New Chrome-Moly: Stroker C/W Crank, Rods w/ ARP Bolts, Rat

Built by Professional Race Engine Shops partnership of VintageFlat4

New or Highly Modified German Engine Case w/ all new bearings. If original German Case is used then All Oil Galleys Opened & Tapped.
Dynamically Balanced Internal Rotation Assembly
Balanced Connecting Rods & Pistons.
New Chrome-Moly: Stroker C/W Crank, Rods w/ ARP Bolts, Ratio Rockers, Pushrods, Lightened or Dual Weigh Flywheel & Gland Nut.
New: Big Bore P/C Set, Big Valve Heads, Ported, Custom Cam & Lifters, Billet Straight Cut Gears, Billet Valve Covers, HD Oil Pump, Full Flowed, External Oil Filter w/ mount, 1-1/2 Quart Sump,, Dual Carb System (jetted for size & application), HEI ignition system or vintage distributor (ie. Porsche 356 style) , Welded & Balanced Cooling Fan, Alternator, Serpentine or V Belt Aluminum System, Full Engine Doghouse Tin, Fuel Pressure Regulator & Gauge, and much more.
Engine Stand break-in period min 40mins. Then tuned to application. Dyno tuned per request w/ additional costs.

Long Block Starting Price $5,975.00 w/ Rebuild-able core exchange on a dual Relief Case. ($500 if none)

Turn Key Starting Price $7,875.00 w/ Rebuild-able core exchange on a dual Relief Case. ($500 if none)

NOTE: "Platinum Edition Turn Key Engines" ready for installation per application w/o exhaust system. Additional parts available per request.
Warranty details see full PDF at bottom of this page.
Prices & detailed line items subject to change due to customers existing parts, application, location and cost / availability of parts. Engine pics used as reference examples.

Contact Us for a Platinum Edition Build Quote

PREMIUM Edition 1800cc - 2176cc

Basic High Performance Edition 1679(TW)cc - 1914cc

Platinum Edition 2007cc - 2387cc

Built by Dale Hansen - Owner of VintageFlat4

Highly Modified German/Mexico Engine Case w/ all new bearings. All Oil Galleys Opened & Tapped.
Balanced Connecting Rods & Pistons.
New: Stroker C/W Crank, Rods, Custom Cam & Lifters, Ratio or 1to1 Solid Shaft Rockers w/ swivel feet & valve lash caps, Big Bore P/C Set, Pushrods, HD Oil Pump, Ligh

Built by Dale Hansen - Owner of VintageFlat4

Highly Modified German/Mexico Engine Case w/ all new bearings. All Oil Galleys Opened & Tapped.
Balanced Connecting Rods & Pistons.
New: Stroker C/W Crank, Rods, Custom Cam & Lifters, Ratio or 1to1 Solid Shaft Rockers w/ swivel feet & valve lash caps, Big Bore P/C Set, Pushrods, HD Oil Pump, Lightened or Dual Weigh Flywheel & HD Gland Nut.
New: Billet or Stainless Steel Valve Covers, Full Flowed, External Oil Filter w/ mount, 1-1/2 Quart Sump, Dual Carb & Single Carb (2 Barrel) System (jetted for size & application), HEI ignition system or vintage distributor (ie. Porsche 356 style), Doghouse Cooler, Alternator, V Belt Aluminum & HD Steel System and much more.
Rebuilt & Modified (per application): Cylinder Heads w/ New Valve Guides, Stainless Steel Valves, Multi-Angled Cut Valve Seats, Dual or HD Single Springs & CM Retainers, Mildly Ported & Match Ported to Intake System. Painted or new Chrome Dog House Cooling Tin, and much more.
Engine Stand break-in period min 40mins. Then tuned to application. Dyno tuned per request w/ additional costs.

Long Block Starting Price $4,475 w/ Rebuild-able core exchange on a dual Relief Case/ Crank/ Rods/ Heads/ Rockers & Push Rods/ Distributor & Gear. ($650 if none)

Turn Key Starting Price $5,875.00 w/ Rebuild-able core exchange on a dual Relief Case/ Crank/ Rods/ Heads/ Rockers & Push Rods/Distributor & Gear/ Engine Tin/ Generator or Alternator & Stand. ($975 if none)

NOTE: "Premium Edition Turn Key Engines" ready for installation per application w/o exhaust system or clutch. Additional parts available per request.
Warranty details see full PDF at bottom of this page.
Prices & detailed line items subject to change due to customers existing parts, application, location and cost / availability of parts. Engine pics used as reference examples.

Contact Us for a Premium Edition Build Quote

Basic High Performance Edition 1679(TW)cc - 1914cc

Basic High Performance Edition 1679(TW)cc - 1914cc

Basic High Performance Edition 1679(TW)cc - 1914cc

Built by Dale Hansen - Owner of VintageFlat4

Modified German/Mexico/Brazil Engine Case w/ all new bearings. All Oil Galleys Opened & Tapped.
New or Rebuilt: Crank, Rods, Custom Cam & Lifters, 1to1 Solid Shaft Rockers w/ swivel feet, Small or Big Bore P/C Set, Pushrods, HD Oil Pump, Flywheel & Gland Nut.
New or Rebuilt: Valve Covers, Full F

Built by Dale Hansen - Owner of VintageFlat4

Modified German/Mexico/Brazil Engine Case w/ all new bearings. All Oil Galleys Opened & Tapped.
New or Rebuilt: Crank, Rods, Custom Cam & Lifters, 1to1 Solid Shaft Rockers w/ swivel feet, Small or Big Bore P/C Set, Pushrods, HD Oil Pump, Flywheel & Gland Nut.
New or Rebuilt: Valve Covers, Full Flowed ready or Oil Filter HD Pump Cover, Dual Carbs .. or .. Single Carb (1 or 2 Barrel) System (jetted for size & application), distributor w/ New Spark Plug Wires & Coil, Doghouse Cooler, Alternator or Generator, and much more.
Rebuilt & Modified (per application): Cylinder Heads w/ New Exhaust Valves, Multi-Angled Cut Valve Seats, Dual or HD Single Springs & CM Retainers, Mildly Ported & Match Ported to Intake System.. Painted or new Chrome Dog House Cooling Tin, and much more.
Engine Stand break-in period min 40mins. Then tuned to application. Dyno tuned per request w/ additional costs.

Long Block Starting Price $2,375-$2,775 w/ Rebuild-able core exchange on a dual Relief Case/ Crank/ Rods/ Heads/ Rockers & Push Rods/ Distributor & Gear.($650 if none)

Turn Key Starting Price $3,875 w/ Rebuild-able core exchange on a dual Relief Case/ Crank/ Rods/ Heads/ Rockers & Push Rods/ Distributor & Gear/ Engine Tin/ Generator or Alternator & Stand. ($975 if none)

NOTE: "Basic High Performance Edition Turn Key Engines" ready for installation per application w/o exhaust system or clutch. Additional parts available per request.
Warranty details see full PDF at bottom of this page.
Prices & detailed line items subject to change due to customers existing parts, application, location and cost / availability of parts. Engine pics used as reference examples.

Contact Us for a Basic HP Edition Build Quote

Aircooled Engine Build Details

Engine Case Machining, Full Flow and Oil Galley Drill and Tap on All Rebuilt Cases

Engine case machining with Full Flow, Oil Galley Drill and Tap ensures proper oil return for Full Flow Oiling—whether from your filter or cooler—while also providing access to clean oil galleys, where dirt and metal debris can accumulate and restrict vital oil flow. Most meticulous builders will choose to drill and tap all galleys for a

Engine case machining with Full Flow, Oil Galley Drill and Tap ensures proper oil return for Full Flow Oiling—whether from your filter or cooler—while also providing access to clean oil galleys, where dirt and metal debris can accumulate and restrict vital oil flow. Most meticulous builders will choose to drill and tap all galleys for a thorough cleaning using a rifle brush.

Full Flow with ALL Galleys is the ONLY WAY to rebuild a VW/Porsche Aircooled Engine Case.

Anything less, is not completely rebuilt, more of a used motor, IMO per Owner Dale Hansen

Multi-angle Valve Work .... On all Our VF4 Rebuilt Cylinder Heads

Three angles on the valve seat where it hits the valve. Usually the seat angle is 45 or 46 degrees and then there is a 15 degree above it and a 60 0r 75 degree below to narrow the seat for better performance.
A stock valve seat with a single 45-degree cut features sharp edges just above and below the seating surface. When the valve begi

Three angles on the valve seat where it hits the valve. Usually the seat angle is 45 or 46 degrees and then there is a 15 degree above it and a 60 0r 75 degree below to narrow the seat for better performance.
A stock valve seat with a single 45-degree cut features sharp edges just above and below the seating surface. When the valve begins to open and air moves past it, these abrupt angle changes disrupt airflow, causing turbulence that slows air velocity and reduces overall flow efficiency.
This abrupt angle can also cause air/fuel separation, disrupting the mixture. To counter this, additional cuts—a secondary angle above the primary seat and a third below—help smooth airflow. That’s why a traditional 30-45-60 degree three-angle valve job enhances performance over a stock valve job. The extra angles guide the air as it changes direction, minimizing turbulence and boosting air velocity and flow. This also reduces air/fuel separation, leading to improved combustion efficiency

Basic head porting .... ON all OUR VF4 Rebuilt Cylinder Heads

Basic head porting .... ON all OUR VF4 Rebuilt Cylinder Heads

No matter if you're building a modestly tuned 1600cc daily driver or a full-race 2387cc street and strip monster, the cylinder heads are a critical component. Consider this: a meticulously crafted 1914cc engine can outperform a larger 2332cc engine, and it’s often all about the heads. One of the key rules in high-performance engine build

No matter if you're building a modestly tuned 1600cc daily driver or a full-race 2387cc street and strip monster, the cylinder heads are a critical component. Consider this: a meticulously crafted 1914cc engine can outperform a larger 2332cc engine, and it’s often all about the heads. One of the key rules in high-performance engine building is remembering that the true horsepower & efficiencies lies in the cylinder heads.
Outstanding cylinder head performance isn't achieved by port work alone. The key elements are those parts of the head that maximize airflow—where the air moves the fastest, in the largest volume, and for the longest duration. This includes the bowl area, the precision of the valve job, the throat diameter, and the design of the combustion chamber. Each of these components plays a crucial role in enhancing performance by ensuring optimal air and fuel flow for efficient combustion.