572 hemi world block- help

[Kingcuda72]

Hi there
I am restoring 68 charger RT auto 727 i explained my build below
I need to ask if i use world block will i face issues with the fitment
Flex plate, TTI headers and  starter.
Please feel free to raise any concern mist of the items will be ordered from different
Resources.

I am ordering 572 hemi indy heads with aluminium world block from M/M with custom cam.
Items  will include:
1-EFI EZ 2.0 fast system with full fuel system in tank pump plus return line.
2-Complete MSD system crank trigger, 6 al2, wires, HVC. 
3-The fuel tank will be custom 1 1/2 extended both sides  and 4" deep to reach 25 G.
4-7" milddon oil pan windage tray with external line and remote filter with HVP.
5-be cool cross flow with double electrical fan up 1000hp.
6-vintage air Ac
7- full march serpentine system.
8- merizer starter and billet water pump.
9- 140 alt powermaster.
10- TTI headers 2.5
The rest of the drive train will be auto 727 transmission beefed up 800 hp and TQ with Over drive. Locked up convertor and with kick down cable.
Still deciding to either go with Shorty SMR or regular size from any re comended source.
Front and back suspension will be RMS with viking shocks and flame river tilt column.
It will have P/s steering rack and pinion and hydro booster power break.
The rear end will be Dana S60 3.73 true track 35 spinal.
The front tires will be 275 35 19 8",  rear 345 30 20 10". Can you till me the maxium size of the tire i can put in rear without adding mini tubing.

Thank you for your time

[1974dodgecharger]

For rears I can attest the biggest you can fit back there based on your 20inch tire is 295 45 20 if you are lowering the rear such as with a hothckis setup at a 45 series you will bump the outer wheel well at each bump.  A 35 series is your best bet unless you gonna keep stock with 20inch tire a 45 series should be fine.
45 series on rear 20s.


35 series

[Kingcuda72]

Thank you for the fast reply
The  30 20" size if fine with me for rear
I was asking about the width
how deep i can go without cutting 305-345
I am waiting for the 4 link suspension and dana 60
For the fitment if anyone tried without shorten rear end.

[1974dodgecharger]

295 is max width for a 2nd gen charger.....I maxed mine out.  Unless you minitub it back there...

[firefighter3931]

I have a 572 wedge using the World iron block and Indy EZ heads. No fitment issues with the starter, flexplate or TTI headers. 

Is that meziere water pump you plan on using electric or mechanical ? I run a mechanical pump on mine with no problems. 



Ron

[Kingcuda72]

I will get the electric water pump.
It seams i may need to mini tub to fit 345
I saw a post a year ago in one of the forums talking about the world aluminum block 
And RMS front Suspension but not sure if it was auto or 4 speed that he had the same concern as me.
A lot of replies came about the starter and the alignments to the fly wheel  or flex plate teethe with mini starter.
And they even recommended a specific starter, housing and TTI header.
I can't find that post anymore thats why i raised it here.
Thank you again for the help i will go ahead whit the setup.