Import v2.50BI/23º SB — Complete

650+ hp out of 383s. 550 hp out of 383–400 pump-gas engines. A bargain for the power.
Package price: $2,895 — final price quoted to your combo.

Every head and porting package is sized to your combination. Send a work order and Chad will reply with a quote before any work starts.
SKU: SRH-IMPORT-V250BI-23 Category:

Description

Import Dart-copy 23º small block heads. Fully CNC w/ SRH program, 5-angle valve job, MLS surface, Erson valve springs, competition valves, USA 10º steel retainers, USA machined 10º locks, USA studs, USA guide plates, USA seals. “I would not call this head cheap. I would call it less expensive… That’s a bad ass head!” — Darin Morgan

Min CSA 2.45 in²
Avg CSA 2.57 in²
Chamber 64–73 cc
Runner 220 cc
Intake 2.055 w/30º BC
Exhaust 1.600
Gasket Fel Pro 1206
Flow @ .600 301 / 221
Flow @ 1.000 312 / 236

Package options

  • .680 roller valve springs — $2,895
  • .650 HYD roller valve springs — $2,895
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