Search results for query: *

The myth that Engine Masters debunked is that aluminum heads need more compression to make the same power/torque as iron heads which is untrue. Aluminum has much less tendency to have hot spots in the chamber. Heat transfer away from the chamber is too slow to matter but localized heat buildup...

Bullet train in Japan.

Shift kit, deep pan and aux cooler will go a long way towards making a stock 904 last. The one in my Duster is a bit of a mystery, rebuilt with supposedly some upgraded hard parts but the guy I bought it from circa 2010 didn't know much about the details. FWIW I put about 35k miles on it...

I'm excited for 440 day! ...oh wait

Thanks guys, I think I'm going to swap the carb first and go from there. I'll refer back to this thread if I still end up needing to upgrade my fuel system.

I'm pretty sure the "issue" is the carb, it's sensitive to float level and the bowls aren't very big. I've had it since 2016 and since moving from Colorado last year and having to pretty drastically richen it up for the change to sea-level air the fuel system can just barely keep up. I never...

I'd agree but this is mostly a street car and electric pumps that aren't mounted inside the fuel tank are noisy as hell. Ideally I'd run an in-tank pump and bypass the mech pump (and ditch this carb for a Holley DP) but for the time being I just want something I can add into the existing system...

I have a 750 cfm Street Demon carb on the ~450 HP 360 in my '70 Duster with a stock replacement Carter mechanical pump and stock 5/16" fuel line all the way from the tank pickup to the carb. Fuel supply seems marginal for my power level as after a second or 2 at WOT I can see my AFR slightly...

Hughes prides themselves on using "REAL CHRYSLER" fast-ramp cams (high lift for a given duration) which do give more performance but at the cost of valvetrain longevity (mainly springs and lifters). A buddy of mine used one of their hydraulic flat-tappet cams in the SBM in his Ramcharger truck...

Lots of factors involved... You mention running a 340, those tend to have less grunt than 360s. I'm wondering if you're getting into the power enrichment opening the throttle that much when it's in 4th, might be better off downshifting to 3rd when you need any extra acceleration. I know the...

Pile up some JB-Weld on the pan rails and main webs too, "DIY Race Block for cheap!"

I have a Firm Feel Stage 2 PS box in my '70 Duster, it's great but if I did it again I'd go with the Borgeson. Too bad it didn't exist back in 2008, that was one of the first upgrades I did to my car.

According to "Chrysler Engines: 1922-1998" by Willem Weertman, the E85-code police HP engines went through 1975 and had true duals, low-restriction air cleaner, and the Magnum/Super Commando camshaft. If the HP 440 was continued through 1978 like the Hemmings article says (seen it referenced as...

2.74 x 3.08 = 8.44 2.74 x 3.27 = 8.96 2.74 x 3.55 = 9.73 2.74 x 3.73 = 10.22 2.54 x 3.08 = 7.82 2.54 x 3.27 = 8.31 2.54 x 3.55 = 9.07 2.54 x 3.73 = 9.14 I realized since you have a lockup 904 you have a lower 1st gear than an earlier non-lockup 904 or 727 (2.74:1 1st vs. 2.54:1). Above shows...

Very true. In my specific case it's not really the noise, more the feel of having to use more throttle to keep the car at a steady speed and how much engine braking there is when I let off the gas. For me it's more the knowledge that my engine is spinning way faster than it needs to and I'm...

I've had 3.55s in my Duster with a non-lockup 904 for the past year and a half, acceleration is excellent but the cruising RPMs got on my nerves enough that I'm swapping the 2.94 3rd-member back in. Freeway speed limit here is 70 mph between cities and most traffic cruises at 75-80, 3200+ RPM...

If it's going behind a stock-stroke 340, neither (there were 2 factory V8 TC sizes) will stall near 2500. I have a factory 11" 904 TC which is the smaller thus higher stall of the 2 and it barely hit 2200 behind a warmed-up, small-cammed 10.5:1 360. IMO your only option to get 2500+ with a 340...

Lol I wear the gold toe low-cut socks, occasionally with slip-on sandals but not really outside the house. More around the house or garage if I'm not wrenching. I just don't like how white socks look especially if I'm wearing shorts, apparently high-cut white socks are "in" with the teenagers...

I have dreams every now and then where I'm banging gears in my old 5-speed '93 Cherokee, it was my daily driver for 10 years and then got rear-ended and totaled. Even in my dream I think "hey I thought I didn't have this car anymore...?" Lol. Then I wake up and remember it got crushed 3 years...

Schneider lists new lifters on their site, I assume Hylift-Johnson is where they get them then?

TF-based transmissions are known to run "dirty", there will always be some amount of black or gray pasty residue in the pan after the trans has been run for a while. Like @TrailBeast said as long as there aren't any chunks or shiny metallic-looking debris in the pan and the fluid is red/pink...

The vacuum advance canister diaphragm acts against a spring. Adjusting the canister increases or decreases spring tension so the diaphragm moves a different distance for a given amount of vacuum being applied. When vacuum is released it only takes as long as the spring can push the diaphragm...

@RustyRatRod thank you for posting results on this (oddly) controversial topic. I for one don't understand why this topic gets so heated, it's almost as bad as what oil to run or Edelbrock vs. Holley carbs. A lot of this hobby is about experimentation and making things work for your specific...

I think I figured it out... I started thinking about grounding and after looking around I didn't see any ground straps going from the cab to the frame. I assume the factory relied on the cab mount bolts for electrical grounding. Well mine have some good surface rust being 50+ years old so I...

I agree with this approach. Another helpful technique is to use a mity-vac (hand vacuum pump) when adjusting the VA can as it will show what inHg corresponds to the amount of advance added. Use a vacuum gauge on the engine while driving to find what the manifold vacuum is at idle and cruising...

I was planning to have the battery load tested but I went out today after the truck had been sitting a couple days and the voltage was at 12.6 at the terminals. Then while cranking over the voltage at the battery terminals only dropped to 11.3 which is 2.5 more than the ignition box needs at...

I had one on my '93 Cherokee, heater was not great and I had to park it outside so it helped a lot to be able to start the engine at 110°F as opposed to -15°F in Colorado winters. If I was still living there and had to drive my D200 regularly I'd probably add one to that truck. Fortunately the...

The power wires are connected directly to the battery. My issue is with the wire that tells the module to turn on, supposed to be connected to 12V ignition on source. About 4 years, it's a Duracell from Batteries Plus so I'd be surprised if it's already going bad but the truck has always been...

This past weekend I redid the engine-to-frame ground, also cleaned and added some conductive paste (copper anti-seize) to the starter-to-bellhousing bolts thinking that wasn't grounded well. The starter turns over a bit faster but the voltage drop when cranking still seems to be pretty high. I...