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HEMI Valve cover question

Started by wingcar, November 15, 2012, 09:32:29 AM

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wingcar

I have a question for you HEMI experts out there: 
What are the dimensions (differences) between a late model HEMI (426) and the first generation HEMI (392, etc.) valve cover.   
A friend says that the early HEMI’s are wider and shorter than the 426 HEMI.   Anyone out there know the dimensions of the two valve covers, or where I might find this information?   This guy claims to know a lot about HEMIs but without covers to actually measure; I have to take his word on it...just wondering...Thanks
1970 Daytona Charger SE "clone" (440/Auto)
1967 Charger (360,6-pak/Auto)
2008 Challenger SRT8 BLK (6.1/Auto) 6050 of 6400

Cooter

Totally different valve covers. Both are about the same width, but different mounting holes, spacing on plugs, etc.

However, I've heard that the early Hemi is the only "True" Hemi due to something bout the actual valves being "True" amount of degrees apart/relation to the cylinder centerline/etc; or something VS the 426 Hemi.
" I have spent thousands of dollars and countless hours researching what works and what doesn't and I'm willing to share"

JB400

I think this is what you need.           Engine Dimensions.
 
Engine Displacement A length B length C height D height E width DIST SUMP STARTER OIL FILTER WEIGHT
Mopar 273/360            29.50   29.50    23.50    31.00     25.00   rear front     left right rear         525/560
Mopar V10              488/505   36.88    36.88    23.50 x  25.00 x  front left right rear                   716/816
Mopar 350/440           29.00    30.00    24.00    30.50     29.50     front center left left front          620/670
Mopar 331/392 Hemi 32.00        31.00   24.00   31.00     29.00     rear center left right rear          729/745
Mopar Late Hemi       32.00       32.00     24.00    32.00    29.00     front center left left front            765

I assume when they say late hemi, I think they mean the 2nd gen 426  not the newer 3rd gen.
 

A - Length from rear of intake manifold to water pump pulley
B - Length from rear mounting surface to water pump pulley
C - Height from bottom of sump to highest point of intake manifold
D - Height from bottom of sump to top of carburetor
E - Width outside of valve cover to outside of valve cover  

I found it at this website.

http://www.carnut.com/specs/engdim.html

If that works, let me know. :2thumbs:

wingcar

Thank you Stoker.....that's what I was looking for......you are the man. :2thumbs:
1970 Daytona Charger SE "clone" (440/Auto)
1967 Charger (360,6-pak/Auto)
2008 Challenger SRT8 BLK (6.1/Auto) 6050 of 6400