Block Patterns

From Holdenpaedia

Original submission by T Apr 5th 2007
Back to Gearboxes Transmissions and Differentials

This Turbo block has been redrilled to take the Trimatic Pattern. The middle two and lower two bolt holes on this block have been filled and redrilled. Click to Enlargen. Photo by WBJailWagon.

This 308 V8 Block has been drilled so that it supports both Trimatic and Turbo style Bellhousings. "Rope seal trimatic pattern" ... HPEngines. Photo by Stepto and Son. Click to Enlargen.

1 Block Patterns:

[edit] Block Patterns:

These images show which V8 blocks match which gearbox bellhousing.
HG383PREM's Shed
There are 2 types of patterns. The Turbo type and Trimatic type. The images show the differences.

[edit] TH700 adaption:

Submitted by v8slrtorana on Tue, 06/03/2007 - 11:02.
The v8 TH700 can bolt up to any holden v8 that has the turbo bolt pattern. If it is a trimatic pattern motor, a adaptor plate is required. The V6 TH700 can be bolted up only with an adaptor plate. Regardless of engine bolt pattern.
End of submission by v8slrtorana