Recent content by Locomotion

I have plates and the newer nipple/stud with internal 3/8" drive to install it. Tried to PM but your mail box is full.

Sunoco Fuel Finder

If I remember correctly, Champion plugs with a "C" on the end (i.e.: N-10YC - more search options) were an upgrade from the originals and had a copper core, or something like that.

May be related but I read somewhere that cranks 360 cranks with CFD cast into them were stronger than the ones with AAWJ and that CFD represented a GM foundry!

As mentioned about Champion plugs, lower # = lower heat range. Some other brands follow that pattern while others are lower # = higher heat range. Gotta check your brand. FWIW N9Y were originally for high compression 340s and N10Y were for 426 Hemis. (I believe Champion 61 & lower were...

It may be code for the foundry that cast it. Certain 360 cranks & heads have that cast into them also.

Just in case.....it's also a good idea to hone with deck plates to simulate any bore distortion that the head bolts may cause when assembled. Some people go so far as to use the same head gasket that goes into final assembly as well as bolt on a head or deck plate on the other side and...

Agreed! I've gotten at least a tenth better performance going from a 3310 750 vacuum secondary to a 4779 double pumper after spending time tuning both on the same combo.

Regardless of brand, many people leave out the front & rear end gaskets and just use silicone. Some end gaskets squeeze out and others are too thick or hard and don't let the intake sit low enough. Make sure the intake lines up properly with the side gaskets in place. Depending on any other...

It depends. One has to determine what .15 seconds in the 1/4 is worth - what it takes to achieve it and what it actually costs in time and money. A lot of the "worth" depends on the rules you race under. The more restrictive the rules are, the more difficult it is to make "legal" changes for a...

The best info I've heard was from testing Chrysler did between a 727 and 904 in the '70's. With both transmissions and their respective converters built to the same specs and the vehicle weight adjusted for the different transmission weights, the 904 was about .15 seconds faster in the 1/4 mile...

OEM cars are usually built with compromises leaning towards "street manners", not meant to be "beat on" and with "comfortable" shifts. But there are different "duty" levels of transmissions. (i.e.: 904, 998, 999) I've always heard that heat is the most common cause of transmission failures...

I ran JW Trans. built 904s in my Dart for years without any trans parts breaking due to outright fatigue. The few trans failures I've had were due to driveline failures first resulting in broken sprag or broken trans cases. Best numbers 11.14 @ 117 with 1.47 60' @ 3,540 lbs footbraking. Usually...

The round, raised area in the middle of the axle flange that the hole in the middle of the brake drum fits over. 4" bolt pattern Mopar axles have a smaller register.

1971 Dodge Dart short track race car This is the closest I could find. Don't know if it would be possible to contact the builder for info, leads or ideas.