Long ram 413

I have a rebuild long Ram engine that I plan on using in a fairly heavy car 3,lbs. The engine specs are as follows: bored to long ram 413 Stock rods, polished side beams, rebushed with resized big ends 9. I am a bit nervous about todays oils and have decided to upgrade to a hyd roller cam before I fire it off, long ram 413.

You are logged in as a guest. Scott Smith Harms - PM I didn't run the cast iron manifolds I have both the log style and the cast iron header style from a 63 J because of the dyno setup, instead he ran some generic 1. The Forward Look Network. Search Statistics User Listing. Jump to page : 1 Now viewing page 1 [50 messages per page]. View previous thread :: View next thread. Message format Flat Threaded Nested.

Long ram 413

While the setups were relatively rare even when new and produced in their original form for only a few years, the principle behind them is commonplace throughout the auto industry today. In a common four-stroke engine, every time the intake valve slams shut, the air-fuel charge packs up behind it. This occurs because the charge has mass and inertia, and at 6, rpm it happens 50 times per second. Each time, a reflecting pressure wave is sent back up the intake passage toward the atmosphere at the speed of sound. Thus we can get more air into the cylinders and produce more output. The drawing above also shows, from the inside out, how Chrysler executed the ram principle on production cars. The standard intake manifold was exchanged for a pair of long-tube aluminum castings, one for each bank of the V8 and each one fed by a Carter AFB four-barrel carburetor. Note how the manifold runners are draped over the valve covers for hood clearance, and the balance tube connecting the two manifolds for smoother idle. Eager to promote its new CID hemi V8, the carmaker approached the race sanctioning board in with a proposal to compete in the Indy The hemi V8 was welcome, but only at the same cubic-inch displacement as the classic Offenhausers et al. At that point the project was tabled, but the special components and the experience gained in the effort carried on. Tuned to optimize for peak torque rpm, the Ram Induction intake runners on Chrysler road cars were inches long, and the carmaker claimed an improvement of up to 10 percent. The tall intake manifold was a discarded dynamometer test piece, and the wild exhaust headers also followed Chrysler ram tuning principles.

I believe the cam you posted would be a great match for the long ram with partly divided runners. I was very happy with the results, here are long ram 413 engine specs: bored to cid Stock rods, polished side beams, rebushed with resized big ends 9.

This is a very rare set of Mopar long runner intake manifolds designed to make the engines - mostly found in the letter cars maximize air flow, power, and torque. The long runners - noted by the ridge dividing the runners, were designed to generate maximum torque for the iconic C bodies on the marquee Chrysler letter cars. This is a complete set of both intake manifolds, both air cleaners with correct carburetor flange, and mechanical linkage. All of the mounting bolt holes are clean with no damage except as noted with the heat tube area. The intake manifold side decks are straight with no distortion. The bottom is clean and free from any defects. The interior runners are coarse as cast, as is the interior of the choke pot and carburetor flanges.

Naturally, powerful acceleration was a key element, but it was intended to make premium models more capable on the road, and not meant for speed contests. Part of that perspective changed when the division released the C in Fitted with the hp, cu. Adventurous CEOs could feel the excitement of raw power while seated in a luxurious cabin, surrounded by coachwork that spoke of edgy—yet not audacious — exclusivity. Chrysler restyled the F with an aggressive front end and grille; the following year would see yet another restyle, this time with distinctively canted headlamps.

Long ram 413

While the setups were relatively rare even when new and produced in their original form for only a few years, the principle behind them is commonplace throughout the auto industry today. In a common four-stroke engine, every time the intake valve slams shut, the air-fuel charge packs up behind it. This occurs because the charge has mass and inertia, and at 6, rpm it happens 50 times per second. Each time, a reflecting pressure wave is sent back up the intake passage toward the atmosphere at the speed of sound. Thus we can get more air into the cylinders and produce more output. The drawing above also shows, from the inside out, how Chrysler executed the ram principle on production cars. The standard intake manifold was exchanged for a pair of long-tube aluminum castings, one for each bank of the V8 and each one fed by a Carter AFB four-barrel carburetor. Note how the manifold runners are draped over the valve covers for hood clearance, and the balance tube connecting the two manifolds for smoother idle. Eager to promote its new CID hemi V8, the carmaker approached the race sanctioning board in with a proposal to compete in the Indy

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Who's "Porter"? The factory carbs proved to be a bit too rich so they were jetted down about 4 sizes restulting in a final air fuel ratio average of right around While we strive to maintain a strong diversity of desirable parts, there simply aren't enough available to meet demand at times. I'm sure the effect is not an abrupt spike at exactly 2,, there's a cushion around it but I doubt it's more than RPM. If your cam choice moves your upshift RPM recovery above the tuned speed, the length stops working. WARRANTY This assembly is guaranteed to match the item description — customers have up to 14 days to return the assembly after receipt if it is not as described. With Indy if there was a capacity limit there was a capacity limit. I installed my cam 4 degrees advanced also. Interesting my Max Wedge 64 Stage race car running almost the same spec cam with the short crossram liked int. Chrysler RB engine Chrysler Big-block.

Whether that means power to weight ratio or putting huge engines in cars, Chrysler leapfrogged others. Painstakingly restored over many, the photos provided will reveal a truly extraordinary car in every way.

I don't have the dyno sheets yet so I'll post those later, the break in went off with no problems, it fired right up and idled smoothly. That's got some torque. Due to its large factory bore size, short compared to RB engines deck height, and bottom end strength that is greater than any other production B or RB engine due to extra material added around the main bearing caps, [5] B engine blocks have become a popular choice for high-performance engine build-ups. Here's the cam card for the current hydraulic flat tappet cam. And Chrysler would have to move the rev range up considerably to make it fast. The partially siamese ram is a better choice for that cam. Toggle navigation Musclecaraircleaners. No reproduction, copying, or resuse of any kind is authorized. At the same time, emissions regulations were demanding cleaner exhaust. This occurs because the charge has mass and inertia, and at 6, rpm it happens 50 times per second. After I get it home I'll add all the stock details, new paint job, cast iron exhaust manifolds, accessories, etc. BTW, to all of you who suggested porting the heads, I caved and requested a good pocket port job. Thinking back….. After some further carb tweaking the AF ratio settled in at on average. I plan to run that one with the cast Iron headers and will probably run the logs as well just to see how bad they choke it.