WebApr 13, 2012 · The L29's will give a comp boost of about 1 point. They don't move much air in stock form, but okay on a towing engine to 4500-5000 rpm. They use those bolt down rocker arms though and won't tolerate much lift without cutting the guides down. Automotive Machining, cylinder head rebuilding, engine building. Can't seem to quit. WebRevise Search: All Models > 7.4L MPI MIE (L29) Gen. VI GM 454 V-8 1998-2000 > 0L002006 - 0L674613 Find Your Engine Drill down to the horsepower, liters or outdrive model, serial number range and component section to get an online inventory of original and aftermarket Mercruiser boat parts.
MerCruiser 7.4L MPI MIE (L29) Gen. VI GM 454 V-8 1998-2000 …
WebOct 7, 2015 · The L29 head worked best with 27 degrees NA, but was insensitive to timing from 25-30 degrees. The Brodix head ran best with 36 degrees NA and this difference carried over once we added boost. Having run the 454 in both normally aspirated and supercharged trim with the stock heads, we quickly swapped them out for the Brodix Race … WebBig-Block Chevy Cylinder Head Basics. by Tom Dufur. The big-block Chevy’s canted valve heads are largely responsible for the tremendous power capability of the Rat motor and its continued popularity. The original head design is often referred to as having a 26-degree valve angle, although this intake valve angle of inclination is only one of ... shiprep.no
Chevy L29 Engine Used - Preowned Engines
WebThese cylinder heads are cast iron, rectangle port heads with 118cc combustion chambers, 2.19" intake valves, and 1.88" exhaust valves. Cylinder Head Installation: Installation is the same as for original equipment cylinder heads. Be sure to thoroughly clean the surface of the block and the surface of the cylinder head prior to installing. WebDec 19, 2003 · These L-29 big block heads have the BIG oval ports, a modern heart-shaped 100 cc or so combustion chamber that would work great with flattops. Drawback is the … WebDr. Rick Roberts is the cylinder head and manifold guru at Edelbrock. He has led the company to produce cylinder heads that represent some of the industry’s best. If you are going to tap into Dr. Roberts’ cylinder head talents, I encourage you to take my dyno-result based camshaft spec’ing advice very seriously. Fig. 4.29. This 468-ci ... questions to ask new hires after 2 weeks