Engine Blocks

Engine Block machining & preperation for Standard engines, Street and Strip performance & Purpose built Racing engines. Precision machining of petrol & diesel engine blocks using modern  Rottler and Sunnen boring & honing equipment. Line boring and line honing is available to straighten and accurately size the main tunnel to provide a bearing surface that will ensure optimum bearing crush & heat transfer for cooler long lasting bearings. Cylinder blocks are indexed from the pan rails In-line blocks & the pan rails & main bearing tunnel on 60° & 90° V-blocks for total machining accuracy. Cylinder sizing & surface finish meet or exceed specifications required by piston ring manufacturers to ensure proper bed in & minimise oil consumption.
Special bore finish is used on all High Performance Racing Engines requiring Torque plates & Plateau honed finish.

 Engine Blocks

  • Chemical cleaning
  • Magnaflux particle crack testing & crack repair
  • Sonic thickness testing
  • Line boring from 1.8"-4.8"
  • Line honing from 2.0"-5.125"
  • Boring & honing capacity 1.5" -8"
  • Torque plate honing available for :
    Chev S/B: 350
    Chev S/B: 400
    Chev B/B: 454
    Chev V8: GEN3 LS1 5.7L
    Chev V8: GEN4 LS2 6.0L
    Chrysler V8: 360
    Ford 6cyl: 200-250
    Ford 6cyl: EA-EL 3.9L 4.0L
    Ford V8: 302/351 Cleveland
    Ford V8: 302/351 Windsor
    Holden 6cyl: 186-202
    Holden V6: 3.8L Buick
    Holden V6: 3.8L Ecotec
    Holden V8: 253-308-355-383
    Holden V8: GEN3
    Mitsubishi 4cyl: 4G54
    Nissan 4cyl: L18-L20
    Nissan V6: VG30DETT
  • Cylinder re-sleeving
  • Cylinder liner recessing from 2.0" to 8.0"
  • Cylinder liner recessing in chassis available
  • Engine block surfacing & indexing
  • Cam bearings fitted
  • O-Ring installation on performance & racing engine blocks
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Adam King
Portland VIC
AMCA National Speedway car limited by rules. 300+ HP
Holden 253, 13.0:1 comp, 500 Holley, alcohol fuel, standard valve sizes.
Current Australian and Victorian champion.
Victorian champion in 07-08, 08-09, 09-10
South Australian Champion in 07-08.
When you are running at the top level of competition you can rely on Port City Engines to provide the ultimate engine.
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