Engine Tech / 160 posts found

Engine Building Tools

by Administrator
Comments are off for this post.
Anybody can screw an engine together with a socket set, but would you really do that without checking all the important mechanical relationships? Engine building is all about precise mechanical relationships and precision measurements that can’t be determined without...

Priority Main Oiling

by Administrator
Comments are off for this post.
Most OEM and aftermarket race cylinder blocks are configured for priority main oiling to protect the main bearings at high RPM. This oiling strategy gives priority to directly oiling the main bearings first. Pressurized oil within the main oil gallery follows a direct path to...

How to Install ARP Main Cap Studs

by Administrator
Comments are off for this post.
Serious race engine builders mostly use high strength ARP studs to anchor the main caps. Studs provide a more even clamping force with higher tensile strength than most bolts and they are less highly stressed in the block ...
Jegs Fuel Log

JEGS Adjustable Billet Fuel Log

by Administrator
Comments are off for this post.
JEGS adjustable billet fuel log provides an effective fueling solution for single four barrel carburetor applications. It fits all center-to-center combinations of Holley 4150 and 4500 style dual feed four barrel carburetors and the adjustable length feature also offers increased fuel capacity in close proximity of both float bowls via the 1-inch diameter fuel log...
Stgraight Shot Oiling

Straight Shot Oiling

by Administrator
Comments are off for this post.
Many years ago racers decided that cross-drilling an additional hole straight through the mains provided better lubrication to the bearings, likely a result of trying to fix an oiling problem or some other problem caused by improper clearances and bearings that were not originally designed for the stress of a racing environment.
Fillet Radius

How to Avoid Rod Bearing Fillet Ride

by Administrator
Comments are off for this post.
Fillet ride is a potential cause of rod bearing failure in racing and high performance engines. This condition most often occurs with racing crankshafts that have a larger fillet radius on the transition from the journal surface to to the side thrust face of the rod journal...
Crank Thrust

Checking Crankshaft End Thrust

by Administrator
Comments are off for this post.
Checking crankshaft thrust endplay is a basic engine building step that is sometimes frustrated by finding a convenient place to anchor the magnetic dial indicator stand. Builders generally check crank end-play with the dial indicator reading off the front of the crank...
ARP rod bolt stretch gauge

ARP Rod Bolt Stretch Gauge How-to

by Administrator
Comments are off for this post.
Most engine builders concede that torquing rod bolts during final assembly is no longer an accepted practice. While no doubt adequate for general engine rebuilding where loading rarely approaches that of competition levels, basic rod bolt torquing simply cannot account for...
Drilling for pin oiler

CV Products Chevy Pin Oiler Installation

by Administrator
Comments are off for this post.
Most dedicated race blocks for Sprint Cup racing, Formula 1 and other high end applications are equipped with piston dome/pin oilers to provide pin lubrication and piston crown cooling. You can install pin oils on Ford and Chevy engines with CV Products kit...
Dart Big M block, 3/4 front view

Dart Big M Block Selection

by Administrator
Comments are off for this post.
The high demand performance requirements of this particular engine application require a cylinder case of superior design and construction. We chose a Dart Machinery "Big M" cylinder block equipped with all the best design features and attending hardware for a high RPM, 1,000 HP+ package.