Custom Drag Racing Engines & Transmissions | Awesome Engines

Sniper Big Block Chevy 24 Degree Head PN 174X Series

Sniper 174X-24° CNC Ported Big Block Chevy Cylinder Heads

$4495.00

One of the Best heads available for Conventional Port Rules

Accepts up to 1.625 O.D. Springs
Ends Drilled and Tapped for accessories
Bronze guides for reduced stem wear
Made in the U.S.A. 100%
Pac 1.625″ 800″ Lift Valve Spring and Titanium Retainers
2.350-375cc Stainless Steel Intake Valves
1.850 Stainless Steel Exhaust Valve

Special Spring Bases to Center Valve Spring Correctly
10° Lash Cap Style Locks
PC style steel case Viton valve guide seals
ProFiler 50° rolled radius valve job
100% CNC Ported
Completely assembled and ready to race
174XC3703 375ccc 2.35/1.85 119cc Fully CNC Bare $1395.00 ea.

The Sniper X cylinder head is the latest BBC head offered in the Sniper Series. Designed with the most up to date technology available the Sniper X head flows over 480 cfm @1.0″ on a 375cc runner and over 325cfm on the exhaust! USA soundest castings available with months of developing the best port and chamber for a 24º head.

All heads are 100% CNC ported including the chamber and features a 5 angle valve job. The Sniper X is best used with Jesel or T&D shaft rockers for a .350″ long intake valve and .100″ long exhaust valve and uses standard pistons.

Sniper X Specifications

Material: Aerospace Specification, A356 Aluminum Alloy (Primary Virgin Ingot)
Valve Angle: 24 Degree (rolled two degrees)
Intake Ports:Rectangle-Shaped, Fully CNC 375cc
Intake Port Design – Modified Oval Port located .485 – .490 off deck (stock)
Intake Port Flow: 375cc = 481 cfm @1.000
Combustion Chamber: CNC – 119cc (Milled 105cc) New design to promote wet-flow and efficiency!
Valve Spring Pocket: 1.625″ Maximum (no deeper)
Bore Spacing: Standard BBC 4.840
Exhaust Valve: Std Location 1.850″ / +.100 long
Intake Valve: Std Location 2.350″ / +.350 long
Deck Thickness: 1/2″ deck for Nitrous and Blown applications
Spark Plugs: Revised location to improve flame travel. Use Gasket 3/4″ Reach Plugs NGK R5671A-7 or colder.
Valve Job: 50 Degree High Performance
Valve Guides: Manganese Bronze Alloy .502″ OD
Valve Seats: Steel (Standard) or Copper Alloy $250
Valve Train: Uses Stock Style stud mounted, Jesel or T&D Shaft Rockers
Engine Size Recommendation: Up to 632 ci @ 8000 RPM
Application: High Performance (i.e. strip/marine) Pistons: Uses Standard BBC Pistons
Head Bolts/Studs: Requires 1″ longer head bolt next to exhaust ports
Intake Manifold – All conventional manifolds will bolt right up (Some port matching may be required).
224XLC4303 430cc 2.400/1.850 119cc fully CNC Bare Heads Available $1995 ea.

Sniper 174X-24° CNC Ported Big Block Chevy Cylinder Heads

$4495.00

One of the Best heads available for Conventional Port Rules

All heads are 100% CNC ported including the chamber and features a 5 angle valve job. The Sniper X is best used with Jesel or T&D shaft rockers for a .350″ long intake valve and .100″ long exhaust valve and uses standard pistons.

Sniper X Specifications

Complete heads have a specific build sheet, USA part #’s, spring rates, installed height and coil bind figures supplied

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