Cylinder head spacer 1.0 mm - DR 133 & Polini cast iron (classic, flat head sealing surface) - aluminum
Thickness: 1.0 mm
Material: Aluminum
For flat head sealing surfaces
Precise adjustment of the crushing edge
For modified stroke/compression height
DR 133 & older Polini cast iron
Use & purpose
This cylinder head spacer was developed for classic cylinder heads with a flat head sealing surface - ideal forDR 133 and older Polini cast iron cylinders(without stepped head sealing stage). It enables the exact restoration or adjustment of the squish edge and combustion chamber position in the event of a modified stroke, different compression height (e.g. long stroke, different connecting rod length) or in combination with base spacers.
Compatibility
Designed for smallframe cylinders with flat head support: DR 133 and older Polini cast iron versions (classic racing/sport versions without stepped head surface). Please check the head geometry visually before fitting.
Technical data
| Head material |
Aluminum (highly conductive, milled flat) |
| Type of construction |
Head spacer for flat head sealing surfaces (no offset step required) |
| Thickness |
1.0 mm |
| Compatible cylinders |
DR 133; older Polini cast iron Racing/Sport (classic, flat head support) |
Fitting instructions
Clean sealing surfaces thoroughly and check for flatness. Dry fit spacer, then fit thinly with suitable heat-resistant sealant or in combination with a suitable head gasket (depending on concept). Tighten cylinder head bolts crosswise to manufacturer's torque, retighten after the first heat cycle. Then measure and document pinch edge using solder; in the case of major stroke/connecting rod changes, also check timing and fine-tune base/head spacer combination if necessary.
DE | €
