r/EngineBuilding is a subreddit with 104k members. The community frequently discusses engine, head, cylinder, rebuild, and block, and they frequently recommend/review impact wrench, cnc machine, and drift car, and the most common flair used is ford, chevy, chrysler/mopar, other, and toyota.
Engine Building and Swaps - V8 and all the rest!
Popular Topics in r/EngineBuilding
#1
Engine
48 posts
#2
Head
18 posts
#3
Cylinder
13 posts
#4
Rebuild
12 posts
#5
Block
10 posts
#6
Pistons
9 posts
#7
Valve
7 posts
#8
Bearing
6 posts
#9
Engine Rebuild
6 posts
#10
Rust
5 posts
Products Discussed in r/EngineBuilding
Impact Wrench
19 reviews
#1
Milwaukee
4.7★ from 7 reviews
#2
DeWalt
4.0★ from 2 reviews
#3
Earthquake
5.0★ from 2 reviews
Cnc Machine
4 reviews
#1
RapidChange
3.0★ from 1 review
#2
CNC Blocks
5.0★ from 1 review
#3
Haas
4.0★ from 1 review
Drift Car
3 reviews
#1
Chevrolet
4.0★ from 1 review
#2
Mazda
5.0★ from 1 review
#3
Honda
4.0★ from 1 review
Flair Used in r/EngineBuilding
#1
Ford
: "In what case is this an acceptable finish"
18 posts
#2
Chevy
: "How does this look for my first time honing?"
14 posts
#3
Chrysler/Mopar
: "Whats the max power a pentastar can make before it breaks?"
8 posts
#4
Other
: "While im there...."
7 posts
#5
Toyota
: "Is that my fucking oil ring??"
3 posts
#6
Honda
: "Do these main bearings look damaged or normal for 200k miles of wear?"
3 posts
#7
Mazda
: "I cryogenically and WPC treated my engine"
2 posts
#8
BMW
: "How should i handle this 50 year old engine that hasn't run in at least 20+ years?"
2 posts
#9
Subaru
: "On a scale from 1 - f*&%ed how bad do you think this is?"
2 posts
#10
Porsche
: "Machine shop says this is normal"
2 posts
Member Growth in r/EngineBuilding
Yearly
+27k members(35.3%)
About
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Last updated: June 20, 2026