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Description
COMP Cams Camshaft B455 295T H-107 T ThBig Mutha' Thumpr 243 257 Hydraulic Flat Cam for Buick 400, 430, 455. Street strip, needs 9. 5: 1 compression, 2800+ stall, intake, Gears and headers, very rough idle. Catalog User 1 This Part Fits: Year Make Model Submodel 1971 1973 Buick Centurion Base 1973 1974 Buick Century Base 1973 1974 Buick Century Luxus 1968 1974,1976 Buick Electra 225 1968 1974 Buick Electra 225 Custom 1974 Buick Electra 225 Limited 1967,1973 Buick Electra Base 1975 Buick
Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Buick 400, 430, 455. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears and headers, very rough idle.
CatalogUser 1
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1971-1973 | Buick | Centurion | Base |
| 1973-1974 | Buick | Century | Base |
| 1973-1974 | Buick | Century | Luxus |
| 1968-1974,1976 | Buick | Electra | 225 |
| 1968-1974 | Buick | Electra | 225 Custom |
| 1974 | Buick | Electra | 225 Limited |
| 1967,1973 | Buick | Electra | Base |
| 1975 | Buick | Electra | Custom |
| 1975-1976 | Buick | Electra | Limited |
| 1970-1976 | Buick | Estate Wagon | Base |
| 1967 | Buick | Gran Sport | Base |
| 1968-1969 | Buick | GS 400 | Base |
| 1970-1972 | Buick | GS 455 | Base |
| 1970-1975 | Buick | LeSabre | Base |
| 1970-1973,1975-1976 | Buick | LeSabre | Custom |
| 1974 | Buick | LeSabre | Luxus |
| 1973-1974 | Buick | Regal | Base |
| 1967-1976 | Buick | Riviera | Base |
| 1975 | Buick | Riviera | GS |
| 1976 | Buick | Riviera | Sport |
| 1976 | Buick | Riviera | SR |
| 1967-1968,1970-1971 | Buick | Skylark | Base |
| 1968,1970-1971 | Buick | Skylark | Custom |
| 1968-1970 | Buick | Sportwagon | Base |
| 1968 | Buick | Sportwagon | Custom |
| 1967-1969 | Buick | Wildcat | Base |
| 1968-1970 | Buick | Wildcat | Custom |
| 1972 | Pontiac | Catalina | Base |
| 1972 | Pontiac | Catalina | Brougham |
| 1972 | Pontiac | Catalina | Safari |
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4.2 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Sturdy& Strong for pitty
my pitbull approves! she had it for about an hour now and usually would have it torn apart but nope it’s still standing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
Great for big chewers
My dogs have to have these. Have to. When I come home from work they each grab one and prance around like they just caught a moose or something. This past weekend my big boy doodle wanted me to toss it to him like I do his tennis ball. He kept dropping it for me to toss. It was hard explaining that it would be the worst boop he ever felt.
Ok, lets talk about longevity. I've had these for over a month and they still look great. Barely looked chewed at all. These are tough and poodles supposedly have soft mouths but mine chew on these a lot. They are large. My female is 60 pounds and my Dood is 90. These chew toys keep my pets engaged when I am busy doing all the things at home so that takes some pressure off of me. I would buy them again for sure.
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Reviewed in the United States on May 26, 2026
★★★★★ 1
It's indestructible because your dog won't touch it.
It's made of hard plastic and has a weird odor. Both of my dogs just looked at it, smelled it and walked away.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Great Teething Toy for an Active Puppy
Our 6-month-old Goldendoodle has really enjoyed chewing on these rings. They’ve been especially helpful while she’s been teething, and so far she hasn’t made a dent in them, which is impressive given how much she chews.
There’s clearly some sort of flavor or scent on the toy that makes it especially attractive to her, so it keeps her engaged much longer than some other chew toys we’ve tried.
The rings feel durable, well made, and are a great way to keep an active puppy occupied. Highly recommend for teething puppies or dogs that are aggressive chewers.
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Reviewed in the United States on May 12, 2026
★★★★★ 2
Super hard plastic
This might be okay for big dogs but my little dogs are not interested at all. I’ve heard if you can’t make an indentation w/ your thumb nail, it’s too hard and your dog could chip or break a tooth…
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Reviewed in the United States on March 27, 2026
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