Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededCHEVROLET PERFORMANCEPART NUMBER: 809-12480034
Phase 3 Bow Tie Cylinder Head Small Block Chevy
$44199
Ships on 09/14/2026
Lowest Price GuaranteePhase 3 Cylinder Head
- Phase 3 Bow Tie Cylinder Head
- Small Block Chevy
- Sold Individually
- Designed for racers required to run a production-style cast iron head, the Phase 3 Bow Tie Cylinder Head is the first true cast iron performance head from Chevrolet Performance. It outflows any production-style cast iron head. Phase 3 Cylinder Heads are intended for off-highway use only, and extra-thick castings allow you to experiment with port modification.Features
- Cast Iron
- No Heat Riser
- Bare Head: 42 lbs
- Intake Runner: 184cc
- Combustion Chamber: 64cc
- Extra-Thick Walls for Porting
- Machined for 2.02"/1.60" Valves
- Machined for 1.50" Competition Springs
- Heat-Treated Valve Seats & Hardened Exhaust SeatsTechnical Notes
- Requires early model intake manifolds
- Uses angled spark plugs (Tapered, 5/8" Hex, 3/8" Reach)
- Studs #809-12495497 recommended for 3/8'' rocker arms
- Studs #3921912 (from Chevrolet Performance) recommended for 7/16'' rocker arms
- Guideplates #3973418 (from Chevrolet Performance) recommended for hardened pushrods
Product LineChevrolet Performance Small Block Chevy Phase 3 Bow Tie Cylinder Head
BrandCHEVROLET PERFORMANCE
Package Height7.5
Package Width9.5
Package Length21.5
Weight46.4 PG
Part CategoryPerformance Parts
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)
![High-Strength Head Bolt Kit for Small Block Chevy [6-Point Hex Head]](https://www.jegs.com/images/mini_200/500/555/555-83400.jpg)
JEGS
High-Strength Head Bolt Kit for Small Block Chevy [6-Point Hex Head]
Part Number : 555-83400
$8799
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
Some parts are not legal for use in California or other states with similar laws / regulations
