SKU: 72417343893

Comp Cams Xtreme Energy XR274R;2000-6000 RPM Range

$550.78 $611.98
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Comp Cams Xtreme Energy XR274R;2000-6000 RPM RangeXtreme Energy XR274R; 2000 6000 RPM Range Mechanical (Solid) Roller Camshaft Specifications Lifter Type: Solid Roller Lifter Engine Family: Chrysler 383 440 C. I. 8 CYL. 1959 1980 Cam Family: Xtreme Energy" Street Mechanical Roller Camshafts RPM Range: 2000 to 6000 Valve Timing: 0. 015 Lobe Separation: 110 Intake Centerline: 106 Valve Lash: 0. 016 (Intake) 0. 018 (Exhaust) Duration: 274(Intake) 280(Exhaust) Duration @ . 050" Lift: 236(Intake)

Xtreme Energy XR274R; 2000 - 6000 RPM Range

Mechanical (Solid) Roller Camshaft

Specifications

Lifter Type: Solid Roller Lifter

Engine Family: Chrysler 383-440 C.I. 8 CYL. 1959-1980

Cam Family: Xtreme Energy" Street Mechanical Roller Camshafts

RPM Range: 2000 to 6000

Valve Timing: 0.015

Lobe Separation: 110°

Intake Centerline: 106°

Valve Lash: 0.016 (Intake)/ 0.018 (Exhaust)

Duration: 274(Intake)/ 280(Exhaust)

Duration @ .050" Lift: 236(Intake)/ 242(Exhaust)

Valve Lift: 0.564(Intake)/ 0.57(Exhaust)

Lobe Lift: 0.377(Intake)/ 0.381(Exhaust)

Features:

  • Best All Around Street Roller
  • 9.5:1 Compression w/ 2500+ Stall


Vehicle Fitments:

Year Make Model Submodel
1959 - 1971 Chrysler 300 Base
1962 - 1963 Chrysler 300 Sport
1975 - 1978 Chrysler Cordoba Base
1959 - 1967 Chrysler Imperial Base
1959 - 1970 Chrysler Imperial Crown
1959 - 1975 Chrysler Imperial LeBaron
1959 - 1974 Chrysler New Yorker Base
1972 - 1978 Chrysler New Yorker Brougham
1959 - 1978 Chrysler Newport Base
1967 - 1976 Chrysler Newport Custom
1971 - 1972 Chrysler Newport Royal
1959 - 1960 Chrysler Saratoga Base
1959 - 1977 Chrysler Town & Country Base
1959 - 1961 Chrysler Windsor Base
1963 - 1964 Dodge 330 Base
1963 - 1964 Dodge 440 Base
1962 - 1965 Dodge 880 Base, Custom
1974 Dodge B100 Van Base, Sportsman
1975 - 1978 Dodge B200 Base
1971 - 1974 Dodge B200 Van Base, Sportsman
1974 Dodge B200 Van Maxi Wagon, Maxi
1975 - 1978 Dodge B300 Base
1976 - 1979 Dodge CB300 Base
1970 - 1971 Dodge Challenger R/T, Base
1970 Dodge Challenger T/A
1969 - 1971 Dodge Charger 500
1966 - 1976 Dodge Charger Base
1967 - 1971 Dodge Charger R/T
1969 Dodge Charger SE, Daytona
1971 - 1978 Dodge Charger Special Edition
1976 Dodge Charger Sport
1971 Dodge Charger Super Bee
1965 - 1970 Dodge Coronet 440, 500
1959 - 1976 Dodge Coronet Base
1971 - 1976 Dodge Coronet Crestwood, Brougham
1971 - 1975 Dodge Coronet Custom
1966 - 1970 Dodge Coronet Deluxe
1967 - 1970 Dodge Coronet R/T
1968 - 1970 Dodge Coronet Super Bee
1978 Dodge D100 Adventurer
1975 - 1978 Dodge D100 Base, Custom
1977 - 1978 Dodge D100 Club Cab
1976 - 1978 Dodge D100 Warlock
1968 - 1974 Dodge D100 Pickup Base
1963 - 1967 Dodge D100 Series Base
1977 - 1978 Dodge D150 Base
1978 Dodge D150 Li'l Red Express
1977 - 1978 Dodge D200 Base
1975 - 1976 Dodge D200 Custom
1968 - 1974 Dodge D200 Pickup Base
1963 - 1967 Dodge D200 Series Base
1975 - 1976 Dodge D300 Custom
1975 - 1978 Dodge D300 RD, Base
1977 Dodge D300 RS
1968 - 1974 Dodge D300 Pickup Base
1963 - 1967 Dodge D300 Series Base
1978 Dodge D400 Base
1978 Dodge D450 Base
1963 - 1968 Dodge Dart 270
1962 Dodge Dart 330, 440
1960 - 1969 Dodge Dart Base
1963 - 1969 Dodge Dart GT
1964 - 1969 Dodge Dart GTS
1960 - 1961 Dodge Dart Phoenix, Pioneer
1969 Dodge Dart Swinger, Swinger 340, Custom
1961 - 1962 Dodge Lancer Base, 770
1974 Dodge M300 Base
1978 Dodge Magnum XE
1960 Dodge Matador Base
1967 - 1968 Dodge Monaco 500
1965 - 1978 Dodge Monaco Base
1974 - 1978 Dodge Monaco Brougham
1977 - 1978 Dodge Monaco Crestwood
1974 Dodge Monaco Custom
1975 - 1976 Dodge Monaco Royal, Royal Brougham
1963 - 1969 Dodge Polara 500
1960 - 1973 Dodge Polara Base
1971 Dodge Polara Brougham
1970 - 1973 Dodge Polara Custom
1970 Dodge Polara Special
1974 - 1978 Dodge Ramcharger Base
1975 - 1978 Dodge Ramcharger SE
1975 - 1977 Dodge Royal Monaco Base, Brougham
1975 - 1977 Dodge W100 Custom
1968 - 1974 Dodge W100 Pickup Base
1963 - 1967 Dodge W100 Series Base
1977 - 1978 Dodge W150 Base
1975 - 1978 Dodge W200 Base
1969 - 1974 Dodge W200 Pickup Base
1963 - 1967 Dodge W200 Series Base
1977 - 1978 Dodge W300 Base
1975 - 1976 Dodge W300 Custom
1968 - 1971 Dodge W300 Pickup Base
1967 Dodge W300 Series Base
1968 - 1971 Jensen Interceptor FF
1968 - 1969 Jensen Interceptor MK I
1970 - 1971 Jensen Interceptor MK II
1972 - 1976 Jensen Interceptor MK III
1972 - 1973 Jensen Interceptor SP
1967 - 1971 Plymouth Barracuda Base
1970 - 1971 Plymouth Barracuda Gran Coupe
1960 - 1970 Plymouth Belvedere Base
1968 - 1970 Plymouth Belvedere Satellite
1965 - 1967 Plymouth Belvedere II Base
1970 - 1971 Plymouth Cuda Base
1960 - 1961 Plymouth Custom Base
1960 - 1963 Plymouth Fleet Special Base
1960 - 1978 Plymouth Fury Base
1971 - 1975 Plymouth Fury Custom
1968 - 1975 Plymouth Fury Custom Suburban
1970 - 1972 Plymouth Fury Gran Coupe
1972 Plymouth Fury Gran Sedan
1970 Plymouth Fury GT, S-23
1974 Plymouth Fury Police
1976 - 1978 Plymouth Fury Salon
1962 - 1978 Plymouth Fury Sport
1970 - 1971 Plymouth Fury Sport GT
1968 - 1978 Plymouth Fury Suburban, Sport Suburban
1966 - 1969 Plymouth Fury VIP
1968 - 1974 Plymouth Fury I Base, Suburban
1965 - 1974 Plymouth Fury II Base
1968 - 1974 Plymouth Fury II Custom Suburban
1965 - 1974 Plymouth Fury III Base
1968 - 1974 Plymouth Fury III Sport Suburban
1972 - 1977 Plymouth Gran Fury Base, Suburban, Sport Suburban
1975 - 1976 Plymouth Gran Fury Custom
1972 - 1976 Plymouth Gran Fury Custom Suburban
1975 - 1977 Plymouth Gran Fury Sport, Brougham
1967 - 1971 Plymouth GTX Base
1976 - 1978 Plymouth PB200 Voyager
1976 - 1978 Plymouth PB300 Voyager
1968 - 1975 Plymouth Road Runner Base
1965 - 1974 Plymouth Satellite Base
1971 Plymouth Satellite Brougham
1971 - 1974 Plymouth Satellite Regent, Custom, Sebring, Sebring Plus
1968 - 1970 Plymouth Satellite Sport
1960 - 1964 Plymouth Savoy Base
1960 - 1961 Plymouth Savoy Deluxe
1960 - 1961 Plymouth Sport Wagon Base
1960 - 1961 Plymouth Suburban Base, Sport, Custom
1961 Plymouth Suburban Deluxe
1970 Plymouth Superbird Base
1974 - 1978 Plymouth Trailduster Base
1967 Plymouth VIP Base
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 72417343893

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4.8 ★★★★★
Based on 29 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
Quiet, that's about the only good quality
UPDATE: Moving to 5 stars! Quickly after my 2 star review (below) the seller reached out and askked to exchange the defective product for an upgraded model at no cost to me. They were attentive and quick in responding, and I received a replacement version that also included the mopping functionality (The first didn't have this), and it works as expected. Customer service was too notch. I wouldn't hesitate to buy again. This is a lot quieter than my original Roomba, that is still running strong...but I wanted a 2nd robot vac so I could run one on the main floor and 2nd floor of my home. This one doesn't fit the bill, and I will be returning. I ran it while I was at home, and it stopped 4 times, telling me I needed to clean the brush. There was absolutely nothing bound on the brush any of the times. But had I not been home, it wouldn't have finished cleaning because it stops completely when it thinks there is hair. Then, another time, it just stopped running. It didn't say anything, so I don't know why it stopped. I assume it thought it was done, but the whole level of my home wasn't finished. This was all in just the one time I attempted to run it for 1 cycle. When I pushed the start button again, it said something to the effect of starting cleaning, so that's what makes me assume the last cycle was over. It does clean well, and is very quiet; however, it just stops for no reason far too often. I want it to run while I'm at the office, which obviously won't work if I have to be here babysitting it for the imaginary dirt on the brush. This will unfortunately be getting returned. I think I'll stick to the Roomba brand, as I have far less issues with my 10+ year old vac than this new one with all the nice features.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2025
J
Verified Purchase
Jason G.
New York, US
★★★★★ 3
Decent robot vacuum, but struggles with dog hair
The setup was straightforward and the self-empty station is a nice feature. It navigates the house fairly well and does a decent job picking up everyday dust and debris on hard floors. Where it struggles is with dog hair. With a shedding dog in the house, I noticed it tends to leave behind quite a bit of hair, especially along edges and in areas where it tends to accumulate. It works better for lighter debris but doesn’t seem powerful enough to keep up with heavier pet hair. Pros: Easy setup and app integration Self-empty station is convenient Navigates rooms fairly well Cons: Struggles with dog hair Not as strong as expected for pet households Bottom Line: This vacuum works fine for general cleaning and light debris, but if you have a dog that sheds a lot, it may not keep up as well as expected. For pet owners specifically, it might not be the best fit.
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Reviewed in the United States on March 11, 2026
T
Verified Purchase
The Memaw
Charlottesville, US
★★★★★ 1
Very Disappointed with this Vacuum
After having a Shark Robot Vacuum for many years, my husband decided to upgrade to newer technology (easier boundary settings, better mapping etc) On a good note, when this thing works - it works great. One of my biggest complaints with the Shark was I had to put physical boundary strips at the top of the stairs etc. This Eufy is very easy to set "no go zones" on the app, works famously in that aspect. This vac also seems to "work" in a more organized manner. I can see on the app exactly what was cleaned after every scheduled cleaning etc. The Shark would just buzz around the house all willy nilly, but this Eufy seems to be very organized in the cleaning, not missing anywhere. Now for the most aggravating part. I have my Eufy scheduled to clean every night @ 1:00 am, while we are sleeping. Most nights @ 1:15 am I get a notification on my phone "Roller Brush Stuck". Well obviously I don't see the notification until morning. I go "find" Eufy (which is easy with the app - shows you right where she is - another nice thing compared to the Shark) Pull the Roller Brush, which mind you, nothing is wrong with, it is not stuck, there is nothing wrapped around it etc. Put it back in & restart. This has done this since day one, brand new out of the box. After doing some scouring of the Internet, I see that this is a big complaint with many other owners of this model. From what I gather, Eufy is aware of this and it is a known problem. I called Eufy Customer Care after about using this for one week. The phone call lasted over 45 minutes (part of my life that I will never get back!) Now mind you, the representative was very helpful & thorough. We walked through a couple procedures, (The Rep had me pull the roller brush etc & report to her what I was "seeing") Which again, I had performed everything the Rep had me do religiously for the past week, but No, she like wouldn't take my word for it, I had to do all this again while on the phone with her - - almost like she didn't believe me at first. Next, the Rep offered to send me a "newer design roller brush" Ok, cool, if it solves the problem let's do it - I just wanted to get off the phone & on with my day. Oh wait, there are no new design roller brushes in stock. Now I'm told to send just the robot back (not the dock) I told the Rep to send me a call tag, as I wasn't going to pay shipping on a "brand new used one week" item. Oh wait, now she has located the replacement roller brushes. So here we are back to the original solution, she will send me a replacement roller brush. Took my name, my address, phone number, name of first & last born children etc. Just a long drawn out process to send me the "fix" for their known manufacture problem. So to make my long story even longer, here I sit a month and a 1/2 later without ever receiving the replacement brush and an unreliable product who doesn't complete her "mission" most nights. I wish this vacuum was still within the 30 day Amazon return period, because I would have sent it back after experiencing this defect. However my husband had bought this for me for Christmas (before the date that Amazon offers their extended holiday returns window) I didn't even unbox this vacuum before the 30 days were up. The App with the mapping & the expansive scheduling options is great compared to the Shark, but I bought the Eufy to vacuum, which she fails @ nightly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
L
Verified Purchase
L. S. Brodsky
San Leandro, US
★★★★★ 5
Absolutely amazing! Working flawlessly for over a month, so far.
Color: White
I am very pleased with the performance so far. The strengths are the ease of setup, the accuracy of its mapping and carpet/floor recognition, the quality of its cleaning and mopping, and the entertainment of just watching. There are weaknesses. The documentation is sparse and pretty useless and tech support has been ghosting me..no responses. So hunt and peck with the App, mostly. Hard to really customize by trial and error. While it vacuums very well, it does not empty as well, really requiring the owner to manually empty the dust bin. No big deal. Maintenance recommendations are hidden on the website and I suspect it is advisable to do some maintenance after every use. The strengths win, however.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
T
Verified Purchase
TLC
Waukegan, US
★★★★★ 5
User friendly, Pet Hair Approved, Quite Powerful Robot Vacuum
Color: White
We prviously had an Eureka E10 vacuum and mop robot for 4 years. We had no idea what we were missing until we purchased this Narwal Freo X10 Pro. It maps very fast. It is extremely quite. The vacuum then mop with a refreshed mop head solution is much better than dragging around a robot mop pad with no way to clean it without removing and washing it. We have 3 Australian Sheppards that shed alot. This was the number one concern, whereas the prvious unit needed daily attention. Not a single hair tangle in the floating rotating brush of this unique Narwal Freo X10 Pro Robot vacuum. 4 months of no robot management is wonderful. The application was easy to use with a ton of customizable options. The AI option to recognize various floor types and throw rugs ensures a complete clean and quick simple setup. Lastly the price vs product was very reasonable. Great product! After spending many months researching, we are glad we made this investment.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025

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