Chevy Bowtie blocks have many extra features when compared to production
If you are building a High Performance or Racing engine, this is what
you will find:
- Short or tall decks
- Siamesed cylinder bores
- Four bolt main caps, straight or splayed
- Thicker cylinder barrels
- Reinforced cylinder barrels, main bearing bolt bosses, deck surface
- Thicker deck surface
- Fully machined main bearing bulkheads
- Provision for oil coolers
- Redesigned water jackets to allow grinding for long stroke cranks
- Bores possible from 4.250" to 4.600"
- Strokes possible from 3.600" to 4.600"
- "Blind" cylinder head bolt holes
- Additional cylinder head bolt bosses in the lifter valley on Gen.
V CNC "Race Prepared" Bowtie blocks
- Cast Iron block weighs between 269 - 272 lbs
- Blueprinted CNC machining on Gen. V Race Prepared Bowtie blocks
- Water jacket holes in deck surface will seal with Mark IV heads
- Better uniform cylinder cooling
- Redesigned oil passages in the Gen V Bowtie blocks
- Provisions for dry sump oiling on Gen V CNC Race Prepared blocks
- Larger valve lifter bosses in Gen V Bowtie block