At the same work station, the cylinder heads receive the stock height valveguides. From there they are sent to the next step in the assembly process.At the same work station, the cylinder heads receive the stock height valveguides. From th Finally, the springs and retainers are put in and this cylinder head is ready for action. Before final assembly, the intake and exhaust valve ports are hand-blended by an employee. This man has the magic touch. As he ground and smoothed each chamber, he would feel with his finger if it needed more work or was just right.Before final assembly, the intake and exhaust valve ports are hand-blended by an employee. Final assembly: the intake and exhaust valves are installed along with the valve seals, seats, and pushrod guide plates.Final assembly: the intake and exhaust valves are installed along with the valve seals, se Before the heads are boxed and sold, a leakdown test is performed on both the intake and exhaust passages. Proper valve seating is a must for quality control issues.Before the heads are boxed and sold, a leakdown test is performed on both the intake and e Here are a few facts and figures on these new 409 cylinder heads: Besides the cylinder head, finned aluminum air cleaners available in black and polished are in production as well.Besides the cylinder head, finned aluminum air cleaners available in black and polished ar It used to be until recently that purchasing a set of finned aluminum Edelbrock 409 valve covers would have run just a little north of the $1,000 mark. Brand new re-pops have laid to waste the swap meet and eBay vampires that would not sell them for less than a grand; now you can buy them new!It used to be until recently that purchasing a set of finned aluminum Edelbrock 409 valve Also available is this dual quad intake, of which there are two versions-one for small-port cast iron factory heads, and one for factory large port heads. Soon there will be a single quad intake.Also available is this dual quad intake, of which there are two versions-one for small-por Are the seals bad in the old stock water pump? Brand new aluminum pumps are available as well.Are the seals bad in the old stock water pump? Brand new aluminum pumps are available as w SOURCES Edelbrock Dept. 5.0 2700 California St. Torrance CA 90503 310-781-2222 www.edelbrock.com « | 1 | 2 | View Full Article By Mike Harrington Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!