Page 249 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Titanium Valves Super 7° Titanium “Shoulder”
Light, strong, and reliable, Del West valves are manufactured using military Valve Locks
spec. titanium for weight savings of approximately 40% over steel alloys. Lightweight locks are machined from high-quality
With lower mass, Del West valves may be used with more radical camshaft titanium. Sets of 16.
profiles without valve float and unnecessary wear on related valvetrain Part No. Stem Diameter Installed Height Style
components. Radius-style lock grooves reduce valve stem and tip stress, DEL790-C-16 11/32" Standard Radius
11/32"
DEL791-C-16
Radius
+.050"
and require radius-style valve locks. Sold in sets of eight. DEL792-C-16 5/16" -.050" Radius
DEL793-C-16 5/16" Standard Radius
DEL794-C-16 5/16" +.050" Radius
11/32" Titanium Valves
Head Overall Super 7° Titanium “Non-Shoulder”
Part No. Description Type Dia. Length
DELEV1600-2T-CRST-8 +.200" Long Exhaust 1.600" 5.140" Valve Locks
DELEV1625-6T25-CRST-8 +.600" Long/25° Seat Exhaust 1.625" 5.540" Lightweight, non-shoulder type 7° titanium locks are among the finest and
DELEV1625-6T-CRST-8 +.600" Long Exhaust 1.625" 5.540" most reliable. 100% CNC-machined locks will save 3-4 grams and assure a
DELEV1625-7T-CRST-8 +.700" Long Exhaust 1.625" 5.640"
DELIV2080-2T-CRST-8 +.200" Long Intake 2.080" 5.140" superior valve stem fit. Sold in sets of 16 pair.
DELIV2100-2T-CRST-8 +.200" Long Intake 2.100" 5.140" Part No. Stem Diameter Installed Height Style
DELIV2150-5T-CRST-8 +.500" Long Intake 2.150" 5.440" DEL689-C-16 11/32" -.050" Radius
DELIV2150-6T-CRST-8 +.600" Long Intake 2.150" 5.540" DEL690-C-16 11/32" Standard Radius
DELIV2180-6T-CRST-8 +.600" Long Intake 2.180" 5.540" DEL691-C-16 11/32" +.050" Radius
DEL693-C-16 5/16" -.050" Radius
BB Chevy/Big Chief
11/32" Titanium Valves Super 7° Standard And “LTW” Titanium Retainers
Valves are specifically for Big Chief Pro Stock-style Retainers are CNC-machined from
and big block Chevy drag racing cylinder heads. billet titanium, heat treated for
Offered with or without hardened steel tips, depend- maximum strength and offered
ing upon engine builder’s preference and installed in standard or “LTW” lightweight
height limitations. Non-tipped valves require lash cap designs. “LTW” retainers have a compound radius,
protection. Sold in sets of eight. created by removing material from the inner body, to
Head Overall minimize weight without compromising strength. Sold in sets of 16.
Part No. Description Dia. Length
Valve Dimensions
Exhaust Valves Part No. Description Spring A B C D
DELEV1900-TBBC-8 .290" Tip With Steel Insert 1.900" 5.480" DEL510-LTW-16 “LTW” Retainers Double 1.450" 1.120" .730" —
Intake Valves DEL515-16 Std. Retainers Double 1.500" 1.140" .745" —
DELIV-BBC-2300T-8 .290" Tip With Steel Insert 2.300" 5.540" DEL515-LTW-16 “LTW” Retainers Double 1.450" 1.140" .745" —
DELIV2400-TBIGCHIEF-8 .290" Tip With Steel Insert 2.400" 6.640"
DEL526-LTW-16 “LTW” Retainers Double 1.350" 1.065" .775" —
DEL530B-16 Std. Retainers Double 1.495" 1.153" .835" —
DEL550B-16 Std. Retainers Double 1.500" 1.185" .780" —

Phil Veldheer Racing

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