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Your cart is empty.This listing is for a brand new high performance cylinder head parts kit that comes with stainless steel intake and exhaust valves, Z28 style performance valve springs, heat treated spring retainers and heat treated valve locks. Kit Includes: (8) 1.94" Stainless steel intake valves. (8) 1.5" Stainless steel exhaust valves. (16) Stock diameter Z28 style valve springs. (16) Heat treated 7° valve spring retainers. (32) Heat treated 7° valve locks. This kit will fit many 1955-1993 small block Chevy 302, 307, 327, 350 and 400 V8 cylinder heads and also could fit many cast iron and aluminum aftermarket heads depending on the valve head diameter and length you need for your application. The Z28 springs are stock outside diameter and can be used as a drop-in fit in many 1955-1993 small block Chevy V8 cast iron cylinder heads. They work great for stock, towing and most mild performance cams and work best with cams up to 0.500" lift. Intake Valves: Forged one piece 21-4N stainless with hardened tip Head Diameter: 1.940" Swirl polished head with undercut stem. Valve Length: 4.910" Tip length: 0.250" Stem Diameter: 0.3415" (11/32") Stem Type: Chrome plated fully machined stem with undercut 1 Groove Exhaust are: Forged one piece 21-4N stainless with hardened tip. Head Diameter: 1.500" Swirl polished head with undercut stem. Valve Length: 4.910" Tip length: 0.250" Stem Diameter: 0.3415" (11/32") Stem Type: Chrome plated fully machined stem with undercut -1 Groove. Springs are: Outside Diameter: 1.260" Inside Diameter: 0.785" Closed: 114 lbs. @ 1.710" Open: 318 lbs. @1.210" Coil Bind @: 1.160" Spring Type: Single with damper. Part # (8)HPV-34 + (8)HPV-35+ (16)RV943X+(1)EHC-555R+(16) 55-6100
michael ginther
Reviewed in the United States on February 7, 2020
My first head rebuild. It took a while to seat them but there great and gave me a lil power back
Erika Ness
Reviewed in the United States on April 18, 2020
Everything is in great quality condition and arrived early 😊. Installing these today.
Joe Jones
Reviewed in the United States on September 9, 2019
Sturdy
Casey Legg
Reviewed in the United States on September 13, 2019
I really like these valves!
Customer
Reviewed in the United States on March 17, 2019
Valves and springs were high quality wish Elgin Made all their products in the USA though. As these were made in China.
Kindle Customer
Reviewed in the United States on December 22, 2019
Everything worked great in my 5.7 MerCrusier. I was rebuilding a set of Vortec Heads with this kit and everything worked as intended until I realized that there were no valve springs in the box of parts I received. So I ended up having to pay the machinist $80 for some springs he had since mine weren't in the package with everything else. Two year into this project and everything is handling the Marine environment very well.
fred Neidlinger
Reviewed in the United States on October 2, 2019
I had a set of bare small block 126 Chevy heads and did a complete rebuild on them ,these parts worked perfect.
EQ
Reviewed in the United States on March 25, 2017
Haven't checked spring pressures yet. But part appear to be good quality.
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