Left-hand drive 
$1,464.56
Pair of All New Cylinder Heads For 356 And 912 From Wilhoit Auto Restoration for Porsche 912 • 1966 • 912 1.6 • Coupe • Manual Gearbox, 4 Speed
Stoddard price list
$4,200.00
616 104 30 1WR
912
1966 - 912 1.6
1
14.551 lbs
PAIR
cylinder heads for 356 (1950-1965) and 912 (1965-1969) models. Cast just like the original heads but using a proprietary alloy and heat treat process that will not crack. The prototypes were extensively tested on the WR engine dyno and on the street. The flow-through finning allows for cooling that is impossible with a CNC machined head.
The smaller DR6EA plug is 12mm x ¾” reach and allows for much more material around the valves. It is a commonly used plug size and is easily available. Four new plugs are supplied with each set of heads. The stainless steel 8mm stem valves are 38mm intake and 34mm exhaust and are installed using a 5 angle valve job. The guides are silicon-bronze alloy for excellent heat transfer and long life. The port design is similar to the original, but the use of the smaller valves and guides allows for improved flow (7% on intake, 3% on exhaust).
Special bead lock Chromoly retainers are matched to the double springs and are good for 7k RPM and lift up to .525 without coil bind. The air injection bosses were retained to allow easy installation of a head temp sensor for EFI. The 61.0cc matched chambers have a 30-degree bevel cut to be compatible with the later factory and aftermarket piston and cylinder kits. Intake and exhaust ports are the larger SC and 912 version.
Test on our in house Superflow 902S dyno shows an improvement over even the latest 356C/912 heads. Improvements compared to earlier heads will be more. Completely assembled and ready to install and run. The WR Standard Cylinder Heads are a perfect replacement for early and late 356 and 912 engines.
WR Stock Replacement Cylinder Head Set for the 356/912
Finally, an improved cast reproduction of the factory type 616 cylinder head. No more fixing cracks and modifying 50+ year old heat cycled original heads that will probably just crack again. Developed and produced by Willhoit Auto Restoration, these new castings solve the 356/912 cylinder head problem with a replacement that looks and performs better than the original.
Features:
* Cast just like the original heads but using a proprietary alloy and heat treat process that will not crack. The prototypes were extensively tested on the WR engine dyno and on the street. The flow through finning allows for cooling that is impossible with a CNC machined head.
* The smaller DR6EA plug is 12mm x 3/4" reach and allows for much more material around the valves. It is a commonly used plug size and is easily available. Four new plugs are supplied with each set of heads.
* The stainless steel 8mm stem valves are 38mm intake and 34mm exhaust and are installed using a 5 angle valve job. The guides are silicon-bronze alloy for excellent heat transfer and long life. Port design is similar to original, but the use of the smaller valves and guides allows for improved flow (7% on intake, 3% on exhaust).
* Special bead lock chromoly retainers are matched to the double springs and are good for 7k RPM and lifts up to .525 without coil bind.
The air injection bosses were retained to allow easy installation of a head temp sensor for EFI.
* The 61.0cc matched chambers have a 30-degree bevel cut to be compatible with the later factory and aftermarket piston and cylinder kits. Intake and exhaust ports are the larger SC and 912 version.
* Test on our in house Superflow 902S dyno shows an improvement over even the latest 356C/912 heads. Improvements compared to earlier heads will be more.
Completely assembled and ready to install and run. The WR Standard Cylinder Heads are a perfect replacement for early and late 356 and 912 engines.
MADE IN THE USA
Price is per pair.
Finally, an improved cast reproduction of the factory type 616 cylinder head. No more fixing cracks and modifying 50+ year old heat cycled original heads that will probably just crack again. Developed and produced by Willhoit Auto Restoration, these new castings solve the 356/912 cylinder head problem with a replacement that looks and performs better than the original.
Features:
* Cast just like the original heads but using a proprietary alloy and heat treat process that will not crack. The prototypes were extensively tested on the WR engine dyno and on the street. The flow through finning allows for cooling that is impossible with a CNC machined head.
* The smaller DR6EA plug is 12mm x 3/4" reach and allows for much more material around the valves. It is a commonly used plug size and is easily available. Four new plugs are supplied with each set of heads.
* The stainless steel 8mm stem valves are 38mm intake and 34mm exhaust and are installed using a 5 angle valve job. The guides are silicon-bronze alloy for excellent heat transfer and long life. Port design is similar to original, but the use of the smaller valves and guides allows for improved flow (7% on intake, 3% on exhaust).
* Special bead lock chromoly retainers are matched to the double springs and are good for 7k RPM and lifts up to .525 without coil bind.
The air injection bosses were retained to allow easy installation of a head temp sensor for EFI.
* The 61.0cc matched chambers have a 30-degree bevel cut to be compatible with the later factory and aftermarket piston and cylinder kits. Intake and exhaust ports are the larger SC and 912 version.
* Test on our in house Superflow 902S dyno shows an improvement over even the latest 356C/912 heads. Improvements compared to earlier heads will be more.
Completely assembled and ready to install and run. The WR Standard Cylinder Heads are a perfect replacement for early and late 356 and 912 engines.
MADE IN THE USA
Price is per pair.
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28 peripheral parts in the diagram « CYLINDER HEAD / VALVE / VALVE GUIDE / VALVE SPRING / CYLINDER HEAD NUT / RING / CYLINDER PISTONS »
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28 parts
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1
From $1,250.00Choose ›
5 Versions available for this part -
2
Copper Cylinder Base Gasket, 4 Required, .25mm Thick. 356 And 912.539 042 09
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$4.22
-
3
Stud000 951 29
Genuine
Not currently available
$363.63 -
4
Circlip For Piston Pin, Original Type. 356 And 912.900 178 002 00Genuine
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$14.23
Recommended quantity: 8 -
5
Spark Plug Insert616 042 09Genuine
Usually ships in 4 business days
$15.80
Recommended quantity: 4 -
6
$12.96
-
7
From $1,464.56Choose ›
-
8
Deves 1858 Piston Ring Set For 1600 Engine With 82.50 BoreSIC 103 185 80
Not currently available
$363.63
Shown 3× on this diagram -
9
Cylinder Head Barrel Nut, 356, 911 912901 104 382 03
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$5.51
-
10
Valve Spring Shim For 356 And 912.369 042 18
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$5.46
Shown 2× on this diagram -
11
$3.80
-
12
Valve Spring616 105 432 03
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$22.22
Recommended quantity: 8 -
13
Valve Spring Retainer, 356sc And 912616 105 422 01Genuine
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$119.30
Recommended quantity: 8 -
14
O-Ring For Cylinder Head Nut - 356 And 912539 042 03
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$1.91
Recommended quantity: 8 -
15
Small Cylinder Head Nut, Fits 356B 356C and 912616 104 383 00
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$54.94
Recommended quantity: 2 -
16
Valve Cover Retaining Spring Bale, 2 Required Per Car, 356 And 912. 53904240NLA 042 40
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$35.97
Recommended quantity: 2 -
17
$1.75
Recommended quantity: 16 -
18
Cylinder Head Retaining Nut for All 356B, 356C, and 912616 104 381 01
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$57.27
Recommended quantity: 6 -
19
Crankcase Breather Hose Grommet For 356 / 912NLA 702 047 50
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$6.30
Recommended quantity: 2 -
20
From $225.79Choose ›
2 Versions available for this part -
21
Intake Valve Stem Seal 4 Required. 356 And 912616 105 491 02
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$4.37
Recommended quantity: 4 -
22
From $14.82Choose ›
2 Versions available for this part -
23
From $10.00Choose ›
4 Versions available for this part -
24
Valve Seat Ring 356 50-65369 104 206 52Genuine
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$56.39
INLET -
25
$38.09
-
26
VALVE SEAT RING616 104 316 52Genuine
Usually ships in 4 business days
$62.15
-
27
$7.35
Recommended quantity: 8 -
28
Exhaust Valve For 356C And 912616 105 406 01
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$37.76
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