Edelbrock RPM Olds 455 Head Porting

The scariest thing I ever did was port a set of new Edelbrock aluminum cylinder heads. My first attempt at porting any cylinder head. I raised the roof .200" and dropped the floor .040". It's best to leave the floor alone or raise it by filling with epoxy. Porting kit by Mondello.

Category:

Autos & Vehicles

Tags:

• Edelbrock
• RPM
• Olds
• 455
• Head
• Porting

[marmlad]

why using square ports??!!! thats shit....

[HeavyOlds]

@marmlad They are now rounder than they used to be.

[lewisengines]

youll increase flow on these heads 20 cfm max IF you know what youre doing, to make them shiny and polish you might as well polish yur rocker covers? first time porting this style head why waste youre time showing people this cant see the point. if you know what youre doing PROFFESSIONALLY you wouldnt get on here and create stupid videos and help the novice mess up his $2500 heads.......

[HeavyOlds]

@lewisengines Sorry to hear about your messed up heads. You should have read some of the comments more carefully first.

[sradie]

Fuel puddling is also less of a problem if you keep the combustion chamber temperatures high enough. Cam overlap is a big factor in puddling because raw fuel cools the cylinders and puddles more rapidly than completely vaporized fuel.That's why high RPM solves the problem. The cylinders are more fully scavenged by the velocity of the air/fuel mixture in conjunction with a good header/exhaust system.

[HeavyOlds]

@sradie Actually I am running an annular discharge carb. They do a good job of vaporizing fuel. I removed the choke altogether.

[Codythecartaker]

@Bigbriansc My edelbrock performer rpm heads came with D ports but that for a small block chevy...id be gussing the olds came d-port too.but idk

[rufusnolan512]

OMG! I am on the unusual portion of Youtube again.

[reggielittle25]

This is a "melted" video. =p

[kamphwagon1]

@HeavyOlds Hmm I didn't know of any annular booster carbs that had chokes that were not either Holley or Motorcraft.. Personaly ,depending on how much RPM you intend to operate at ( CFM size ) I would consider a Holley HP with BLP annular boosters if your looking for fuel vaporizeing , they offer a billet annular insert with 16 holes that fits the Holley banjo with a option of leg sizes starting at 0.140 , you might want to check their website...

[roycestevens37]

This video went viral on Vanuatu

[80v8camaro]

nice work!