“Max effort daily driver” 318 build vs “Budget” 400 swap

AJ, there is a lot wrong and arguable in your post.

This is a description open to interpretation and that open area is huge!

This a weight I’d like to see for clarification.



This is possible but IMO, a looser next to the 400

I agree

Because making more power with a bigger engine is easier. Due to a shear CID advantage, more and better power can be made easier with less camshaft and still use a low gear set.

My ‘79 Magnum had a 318, Edelbrock 600/4 barrel, performer intake, dual exhaust and a mild cam. I swapped this out for a ‘78-400 and only added a Holley Street Dominator, electric choke TQ (AKA Small primary unit) and Hedman headers into a true dual exhaust with DynoMax turbo mufflers. No cam change.

The 400 slaughtered the 318 everywhere AND equaled it in mileage.


Wise words

Horrible advice and a stupendously dumb idea.
Shame on you!

Camshaft first once the short block is done. You can start with an idea of a camshaft first as a general idea of where and how the cam will work in terms of performance. That’s where that ends.


This is the first step in the whole package. Not the converter or camshaft. With the idea of running only 87 or stepping up to 91/93 it will allow other ideas to roll in and out.

To simple and bad

Arguable, very.

Very arguable!

Here comes the calculator and assuming long winded writings.

Stuck? Define stuck! The driver of such a combo would only leave the car in this gear that long by choice or not care about it. This also assumes camshaft size.

From a dead stop, yes, not traveling down the Hwy.
More assumptions ?



A 3K drop? Can anybody else confirm this?


More assumptions being made!
Such a shame you make such blanket statements chock full of assumptions!


WTF? LMAO!!!!

Assumptions



More assumptions


WTH!!!!!!

And… a cam of 230@050?
Oh boy….

Now where talking

And a wider LSA is loosing torque, follow the rules and it’s a 107 w/a 1.78 valve if the compression ratio is 10/10.5-1. Since most cams do not get cut like this, (Thumper) drop it down rather than move up.

But is the future engine a 10-1 or 10.5-1? And running on 87?

That 110 is a basic go to. How does that make a messy intake and exhaust system?


Not really as there is a variance in an acceptable cam duration ether way.

What a load!

Must have low experience




Assumptions being made! You could a lot worse.


Probably more than he is interspersed in but it’s all good.
(Enter the laughing emoji you hate so much! LOL! :poke: )
So all this calculation is done with what piston, head gasket and cylinder head cc?



Get the right cam in the first place and you won’t be bothered in playing around with advancing the cam.


Is it really?????

I’ve used several cams very very close to your specked 318-218/226 cam and that is NOT an ISSUE at all.

Nothing like writing out a ton of dribble and stating it’s wrong.

LU converters equal big bucks

My eyes are bleeding…..
My eyes bled out, I'm in tears from your AJ like post. :D