Edelbrock thunder avs 1813 carb question

[roadrunner57]

I have a stock 440 with stock manifold. Is this carb a good choice? Will it mount with no adapter? How about height? Plumbing changes?

I guess I could research this but find folks with practical experience is better.

thanks in advance.

 

[440 4 speed]

I have a stock 440 with stock manifold. Is this carb a good choice? Will it mount with no adapter? How about height? Plumbing changes?

I guess I could research this but find folks with practical experience is better.

thanks in advance.

What year is your intake?

 

[roadrunner57]

What year is your intake?

78 I believe

 

[440 4 speed]

78 I believe

If it is a 78, it will have a spread bore intake. The AVS will fit.

 

[roadrunner57]

If it is a 78, it will have a spread bore intake. The AVS will fit.

Thanks

 

[66chargerpat]

Isn't that carb a square bore?

 

[440 4 speed]

Isn't that carb a square bore?

AFB`s are square bore. The 1969 4640 AVS was a spread bore, which needed an adapter plate to work on my 67 440, which had a square bore intake. I would think if Edelbrock says it is an AVS it should be spread bore.

 

[Plybeep68]

If memory serves me correctly, this carb has both mounting patterns, square bore and spreadbore

 

[kramer]

I have two of these 1813 AVS carbs on my big blocks and they work great for me.

 

[R/T Boy 67]

67 440 AFBs and all AVSs and 4150-60 type holleys have the "square bore" bolt pattern. The early AFBs and spread bore carbs have the "spread bore" bolt pattern. Most after market carter type carbs have both patterns, but just because the bolt pattern fits does not mean that they will work together properly.