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EngineBuilding

EngineBuilding 0 Comments

Updated Rules for r/Enginebuilding

Hey peeps, We've been noticing an uptick in certain types of posts over the last few months and it's about time we address some of these issues along with a ru

EngineBuilding 48 Comments

State of the Sub - What changes need to be made /r/EngineBuilding

It's been a long time, but I'm hoping to be more active as well as the other mods. We are also hunting through the 'applications' to add some new mods as well,

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

I prefer my pistons and springs with a little bling

EngineBuilding 107 Comments

I prefer my pistons and springs with a little bling

Does anyone go to this extent and why?

Built 6.0 ls engine failed on the dyno.

Built 6.0 ls engine failed on the dyno.

Built 6.0 ls engine failed on the dyno.

Built 6.0 ls engine failed on the dyno.

Built 6.0 ls engine failed on the dyno.

Built 6.0 ls engine failed on the dyno.

EngineBuilding 71 Comments

Built 6.0 ls engine failed on the dyno.

Here are some pictures of my ls engine after a dyno run.

Engine Won't Turn By Hand

Engine Won't Turn By Hand

EngineBuilding 28 Comments

Engine Won't Turn By Hand

Hey all, this is my first time rebuilding an engine and I've got a Ford 460 D3VE block. I am having a problem where when I torque all the rods down I can't tur

EngineBuilding 110 Comments

Built 6.0 ls failed on the dyno. Any ideas?

Thought I did everything properly. Engine probably had 500 miles on it. Granted it might have lasted a while longer had I not put it in the dyno. But I’m sur

Here is some more carnage to speculate about. This was a ford 460.

Here is some more carnage to speculate about. This was a ford 460.

Here is some more carnage to speculate about. This was a ford 460.

Here is some more carnage to speculate about. This was a ford 460.

Here is some more carnage to speculate about. This was a ford 460.

EngineBuilding 24 Comments

Here is some more carnage to speculate about. This was a ford 460.

EngineBuilding 6 Comments

821 heads for a 418ci LS3

Will 200gram lighter rods amount to any significant power/ fuel mileage gain? Same part. The thinner rod is newer model year, forged, around 500g, big rod is over 700g. They did switch to bearings without locating tabs, but I'm not sure if the hassle is worth it.

EngineBuilding 25 Comments

Will 200gram lighter rods amount to any significant power/ fuel mileage gain? Same part. The thinner rod is newer model year, forged, around 500g, big rod is over 700g. They did switch to bearings without locating tabs, but I'm not sure if the hassle is worth it.

EngineBuilding 1 Comments

The pins, plugs, install dry as is, or do they need sealant? Coyote block. Thank you

EngineBuilding 4 Comments

Camshaft breakaway torque - Jeep 258

Rebuilding a CJ7 motor (258, with 4.0 head). Crank rotates smooth with little effort. Cam (comp cams) installed in fresh bearings took a light tap to get the

13b 6 port turbo build

13b 6 port turbo build

13b 6 port turbo build

13b 6 port turbo build

EngineBuilding 2 Comments

13b 6 port turbo build

I had an intake fitment issue....

I had an intake fitment issue....

I had an intake fitment issue....

I had an intake fitment issue....

I had an intake fitment issue....

I had an intake fitment issue....

EngineBuilding 25 Comments

I had an intake fitment issue....

Oopsy....the intake don't fit man. I had options. What would you do? 3/8" to 7/16" gap front and back. The intake is sitting on the support ribs.

EngineBuilding 6 Comments

Should I replace my valve?

Looks like this engine head sat for a long time and it ate up the valve stem right where the stem seal sits. Will this chew up my viton seals til complete failu

Can we finally settle the debate. Compression test Cold or Hot?

EngineBuilding 26 Comments

Can we finally settle the debate. Compression test Cold or Hot?

I have 2/8 cylinders that when absolute cold read 76psi/ 40psi. Warm both jump to 160-165. Spec is 180. Manufacturer gives a 140-180psi working range. \*COLD

Uneven connecting rod bearing wear?

Uneven connecting rod bearing wear?

EngineBuilding 31 Comments

Uneven connecting rod bearing wear?

Currently rebuilding my k20a2 and noticed slight wear in the connecting rod bearings and moderate wear on the bearing by the timing sprocket and cylinder 1. Bea

CHR57 5.7L HEMI XFI 268H-13

EngineBuilding 0 Comments

CHR57 5.7L HEMI XFI 268H-13

So ill be doing a cam swap what size of push rods will i need for this cam i heard the base circle of this cam is the same as factory 5.7 hemis but im not sure

Can aluminum cylinder heads warp at 255F? I was wondering because resurfacing the heads would add like $300 to the rebuild and I need to know if I have to start saving up now. I usually let it cool down around this temp then go back to full throttle again.

EngineBuilding 4 Comments

Can aluminum cylinder heads warp at 255F? I was wondering because resurfacing the heads would add like $300 to the rebuild and I need to know if I have to start saving up now. I usually let it cool down around this temp then go back to full throttle again.

I was just wondering because my exhaust manifolds were so warped that if placed on a glass surface you could fit two 25cent coins on both the front and rear cyl

Ford SOHC 4.0 timing chain guide failure, is engine still reusable?

EngineBuilding 4 Comments

Ford SOHC 4.0 timing chain guide failure, is engine still reusable?

So in good old ford fashion, the timing chain guides broke on my 2003 ranger 4.0. Truck was still running fine without any rattle, timing has not jumped. I only

EngineBuilding 4 Comments

question about building a pre-fab'ed engine

is this a thing? can i just buy an unassembled engine, and completely build it myself? i like the concept, it makes the car feel more connected to you, like a c

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

Topping the polished pistons

EngineBuilding 7 Comments

Topping the polished pistons

If you've seen the first Moana.....the 🦀 Now please read this before you cruise through the pics. I made the mistake of sharing some numbers(fudged numbers)

EngineBuilding 2 Comments

Is this block toast?

I feel like I have the worst luck when it comes to defects like these. Wanted to replace the valve steam seals and head gaskets pretty much preventatively, now

2004 5.7 hemi rebuild question

2004 5.7 hemi rebuild question

EngineBuilding 10 Comments

2004 5.7 hemi rebuild question

This visible gasket looks wrong after putting valve covers back on. Bolts are tight, don't wanna go together and risk breaking one .

Smog Delete Vacuum Route

Smog Delete Vacuum Route

EngineBuilding 10 Comments

Smog Delete Vacuum Route

The previous owner of my 1991 5.0 Bronco did a smog delete and I’m not so sure the way they routed the vacuum system is correct. Can anyone give me some feedbac

EngineBuilding 4 Comments

Two Stroke Ring Wear (.200" Ring End Gap)

https://preview.redd.it/uf3rjgzs9nbf1.jpg?width=1200&format=pjpg&auto=webp&s=ee68744cf297b40ca0944615576a1b80c6797384 Hey all, I just wanted to sha

Piston scoring on only one side

Piston scoring on only one side

Piston scoring on only one side

Piston scoring on only one side

EngineBuilding 18 Comments

Piston scoring on only one side

I have a customers Olds 350 that he tells me has been bored .068 over (I have yet to verify) with all sorts of fancy expensive forged parts & Howard’s rolle

EngineBuilding 2 Comments

Questions regarding my first engine “rebuild”

So I’m an at-home mechanic and I’ve recently gone through the process of k swapping my 2000 Honda civic. I found a really good deal on a k20a2 ($600) and was to