Introduction: Knex V8 Engine

Picture of Knex V8 Engine

A Knex V8 Engine with a working crankshaft.peices:

8 wheels
8 grey rods
35 yellow rods
10 red rods
21 white connectors
50 blue connectors
8 one slot grey connectors
10 purple connectors
28 silver spacers
12 blue spacers

Step 1: The Frame

Picture of The Frame

In this step you will make the frame.

Step 2: The Pistons

Picture of The Pistons

The easiest part of the whole build.

Step 3: The Crankshaft

Picture of The Crankshaft

The main bit of the build

Step 4: Attaching

Picture of Attaching

This is the last step


Dakota Joel98 (author)2014-08-16

I built it though it doesn't run very smoothly, its still cool

nerfaholic25 (author)2014-07-25


Dumchicken (author)2011-04-26

im gunnu make a teeny one

bamcar1 (author)2011-03-15

How many white rods do you need?????

Tyler2019 (author)2010-07-09

You should put a moter in it

Jamese123 (author)2008-10-24

Make two of these

Der Bradly (author)Jamese1232008-10-24

You are talking to yourself...

Jamese123 (author)Der Bradly2008-10-24

no i was just trying to make those yellow box things but it wouldent let me

TOMNDAN (author)Jamese1232010-02-14

nice! 4*

theoffice101 (author)2010-01-30

 just built it.I love it

KnexFreek (author)2010-01-17


KnexFreek (author)KnexFreek2010-01-17

 5 stars

rybubbles (author)2009-10-10


lioneatr (author)2009-06-11

just built it is awesome 5*

Jamese123 (author)lioneatr2009-09-18


DIRTRACER39 (author)2008-11-08

try adding valvetrain, and have it all timed correctly, that would be sweet i would worship you if you could do that. i tryed it myself but it didn't work out lol

cranium-creator (author)2009-01-10

i wonder if you could make a smaller one, it would look amazing in a small car

BLAKHAT (author)2008-11-26

does it work

Jamese123 (author)BLAKHAT2008-12-02

If you put a motor onto it then yes it does work

knexfreak95 (author)2008-11-17

i remeber my old knex engine i had it set up to my transmission it was only a 3 speed

CrazyCHRIS!! (author)2008-11-16

i might make this and add rubber bands so it actually works

TheWelfareWarrior (author)2008-10-24

AMC (most V8 engines): Clockwise 1-8-4-3-6-5-7-2
• Buick (most V8 except HEI): Clockwise 1-8-4-3-6-5-7-2
• Chevrolet: Clockwise 1-8-4-3-6-5-7-2
• Small Chrysler: Clockwise 1-8-4-3-6-5-7-2
• Big Chrysler and Hemi: Counter-clockwise 1-8-4-3-6-5-7-2
• Ford (5.0L HO, 351W, 351M, 351C, 400): Counter-clockwise 1-3-7-2-6-5-4-8
• Ford: Counter-clockwise 1-5-4-2-6-3-7-8
• Oldsmobile (1967 and up): Counter-clockwise 1-8-4-3-6-5-7-2
• Pontiac (most 1955-81 V8 engines): Counter-clockwise 1-8-4-3-6-5-7-2
Note: 307 Pontiac V8 engine rotates clockwise.

the front left being 1 back right being 8. Right = even, left = odd

Remember, each cylinder fires every other revolution so two cylinders should be at what appears to be TDC.

If I am wrong please correct me.

unless its a four stroke

Punkguyta (author)2008-10-24


About This Instructable




More by Jamese123:Project DESTRUCTION Part 3Project DESTRUCTION part 2Project DESTRUCTION part 1
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