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Description
Comp Cams Xtreme EnergyT, XE274H High Performance StreetXtreme EnergyT, XE274H High Performance Street, Very Strong Mid Range Lifter Type: Hydraulic Lifter Engine Family: Ford 352 428 c. i. 8 CYL. 1963 1976 Description: Hydraulic High performance street, very strong mid range with headers, 2400+ stall and lower gears Cam Family: Xtreme EnergyT Hydraulic Flat Tappet Camshafts Specification: RPM Range: 1800 to 6000 Valve Timing: 0. 006 Lobe Separation: 110 Intake Centerline: 106 Valve Lash: Hyd. Intake Hyd.
Xtreme EnergyT, XE274H
High Performance Street, Very Strong Mid-Range
- Lifter Type: Hydraulic Lifter
- Engine Family: Ford 352-428 c.i. 8 CYL. 1963-1976
- Description: Hydraulic-High performance street, very strong mid-range with headers, 2400+ stall and lower gears
- Cam Family: Xtreme EnergyT Hydraulic Flat Tappet Camshafts
Specification:
- RPM Range: 1800 to 6000
- Valve Timing: 0.006
- Lobe Separation: 110°
- Intake Centerline: 106°
- Valve Lash: Hyd. Intake/ Hyd. Exhaust
- Duration: 276 Intake/ 286 Exhaust
- Duration @ .050" Lift: 230 Intake/ 236 Exhaust
- Valve Lift: 0.562 Intake/ 0.565 Exhaust
- Lobe Lift: 0.327 Intake/ 0.327 Exhaust
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1963 | Ford | 300 | Base |
| 1963 - 1971 | Ford | Country Sedan | Base |
| 1963 - 1971 | Ford | Country Squire | Base |
| 1964 - 1971 | Ford | Custom | Base |
| 1964 - 1971 | Ford | Custom 500 | Base |
| 1968 - 1976 | Ford | F-100 | Base |
| 1975 - 1976 | Ford | F-100 | Custom, Ranger, Northland, Ranger XLT |
| 1976 | Ford | F-150 | Base |
| 1975 - 1976 | Ford | F-150 | Ranger, Ranger XLT, Custom, Northland |
| 1965 - 1976 | Ford | F-250 | Base |
| 1975 - 1976 | Ford | F-250 | Ranger, Custom, Northland, Ranger XLT |
| 1968 - 1976 | Ford | F-350 | Base |
| 1975 - 1976 | Ford | F-350 | Custom, Ranger, Northland, Ranger XLT |
| 1964 - 1970 | Ford | Fairlane | 500 |
| 1966 - 1967 | Ford | Fairlane | 500XL |
| 1964 - 1969 | Ford | Fairlane | Base |
| 1963 - 1967 | Ford | Galaxie | Base |
| 1963 - 1971 | Ford | Galaxie 500 | Base |
| 1963 - 1964 | Ford | Galaxie 500 | Victoria, Sunliner |
| 1963 - 1970 | Ford | Galaxie 500 | XL |
| 1965 - 1971 | Ford | LTD | Base |
| 1970 - 1971 | Ford | LTD | Brougham |
| 1971 - 1973 | Ford | M-400 | Base |
| 1974 | Ford | M-450 | Base |
| 1969 - 1970 | Ford | Mustang | Boss 429, Boss 302 |
| 1970 | Ford | Mustang | Mach 1, Grande |
| 1967 - 1970 | Ford | Mustang | Shelby GT-350, Base, Shelby GT-500 |
| 1968 | Ford | Mustang | Shelby GT-500KR |
| 1963 - 1971 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1967 | Ford | Ranchero | 500 XL |
| 1967 - 1969 | Ford | Ranchero | Base, 500 |
| 1968 - 1969 | Ford | Ranchero | GT |
| 1963 - 1968 | Ford | Thunderbird | Base |
| 1969 | Ford | Torino | Cobra, Squire |
| 1968 - 1969 | Ford | Torino | GT, Base |
| 1967 | Mercury | Brougham | Base |
| 1965 - 1967 | Mercury | Caliente | Base |
| 1963 - 1970 | Mercury | Colony Park | Base |
| 1965 | Mercury | Comet | 202, 404 |
| 1965 - 1969 | Mercury | Comet | Base |
| 1964 - 1968 | Mercury | Commuter | Base |
| 1967 - 1970 | Mercury | Cougar | Base, XR-7 |
| 1969 - 1970 | Mercury | Cougar | Boss 429, Cobra Jet, Boss 302 |
| 1965 - 1969 | Mercury | Cyclone | Base |
| 1969 | Mercury | Cyclone | Spoiler, CJ |
| 1963 - 1970 | Mercury | Marauder | Base |
| 1969 - 1970 | Mercury | Marauder | X-100 |
| 1967 - 1970 | Mercury | Marquis | Base |
| 1969 - 1970 | Mercury | Marquis | Brougham |
| 1964 - 1968 | Mercury | Montclair | Base |
| 1968 - 1969 | Mercury | Montego | Base, MX |
| 1963 - 1970 | Mercury | Monterey | Custom, Base |
| 1963 - 1967 | Mercury | Monterey | S-55 |
| 1964 - 1968 | Mercury | Park Lane | Base |
| 1965 - 1967 | Mercury | Villager | Base |
| 1966 - 1967 | Mercury | Voyager | Base |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Comfortable
Size: 11, Color: Pastel Pack
Full cotton, is a must for me. Legs could be looser. Would buy again
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Reviewed in the United States on November 20, 2025
★★★★★ 4
Perfect for me (update, took 1 star away) (2nd update Jul 20, 2022)
Size: 8, Color: Pastel Pack, Size: 8, Color: Pastel Pack
This product is amazing. You get 10 pairs of underwear in 5 pastel colors. Colors are exactly as shown. I used an 18 inch ruler in my pictures to show size and stretchability. The height from pant leg bottom to waist line is long so you dont worry about any buttcrack showing. It covers your thighs, too. These are nice because they added some space between the legs instead of stitching it like yoga pants where the pants legs come up and just merge together at the crotch. This underwear gives room for your lady bits and prevents cameltoes/front wedgies. The fabric on the hip area is just as stretchable as the waistband.
2021 September edit: I still love these and so I bought another pack. Simply because my other, uncomfortable underwear (not this pack) has irritated me enough. I realized that I was usually happier with my clothing when I was wearing these underwear because they are just so comfortable (and my fav colors)! They have held up very well and at least with the pastel pack, the colors still look good. The writing on the inside has held up as well. $50 for 10 super comfy pairs of underwear is great imo.
Second update: I compared my new pairs to my old ones (ssme size ordered) and the waistband used to be manufactured to stretch about 2 more inches or so. The new way they created the hem is less stretchy so I took a star off my rating. My newer pairs of this underwesr will be my last choice to wear for the day compared to my first order. The blue pair in the video is part of my first order of these and pink is a pair from my newer purchase. Yes that video was a bit tricky to make lol. The pink pair was made in Pakistan and the blue was made in India.
Jul 20th update: I now have significant holes in my first pairs. But this is due to both lots of wearing, and also because my cats like to knead on my clean clothes.
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Reviewed in the United States on June 24, 2020
★★★★★ 5
Well worth the money!
Size: 10, Color: White Pack
Good fit! Holds up in the wash! Very comfortable!
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Reviewed in the United States on May 18, 2026
★★★★★ 3
Mixed Feelings
Ok, so... It seems there's not much quality control for these underpants. About half of them have the back seam way too short so it doesn't come as far up in the back as it should, making it very uncomfortable if you wear them and bend forward. Be aware that there are four pretty thick seams on them. Two going right up the front and back and the two on the sides. Positives are the colors are great, and the material is very soft. I actually just wear these to bed, inside-out because of the harsh seams, and I wear them two sizes bigger than I am so they are nice and loose. I ordered my correct size to wear regularly and found that the inconsistency in the back seam was just too much for me. I will not be ordering these again.
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Reviewed in the United States on January 13, 2023
★★★★★ 1
Buyer beware
Size: 8, Color: Pastel Pack
Got these and tried on one pair cause seriously who tries on all 10 pairs when they buy underwear. They fit good a little loose but I figure they will shrink a little in the dryer. So as the label states wash before wearing I washed them all. Well then I go to put a pair on and they are way to small and I'm thinking there is no way they shrunk that much in the dryer which was on low setting. So I try on a different color one on and they fit fine. So now I'm trying more on and same thing some are good, some are small and some are big. What the heck they all say the same size inside. So this is clearly a manufacturing defect issue so I reach out to the seller. Well after going back and forth they only want to give me 30% of my purchase price back due to me having washed them and now they can't resell them. Well from where I'm sitting you shouldn't be trying to resell them anyway because they aren't even the same size. I don't usually leave bad reviews but after having read so many good ones on here and that being the reason why I bought them I figure people should be aware that they to may have the issue. So try them all on before washing.
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Reviewed in the United States on August 30, 2022