with a modified MP 9.20" M1 W2 intake manifold.

did that intake ever exist????

I see your point, thanks RJ

Thanks guys .Now my head is spinning .
So if i get the number off the block will that help me with deciding .Who knows maybe its a 48 degree block .The guy says he has B1BS heads from another S.B .B1BA is the right head .
$1500 for the block ,so i need to check it out .
Where can I get all the info for R3 blocks I tried the tech area.
So even with the cam ,pushrod on a 59 degree where does the rpm ,cam have the issue ? Most of us are running the 340 360s stroked with eddy heads .
thanks Don
Don

http://www.jimsautoparts.com/mopar_performance_blocks.htm

Look here for part numbers and specifications.
The numbers have changed over the years too I believe.........early blocks don't have the AC in the P/N and also do not have the lifter bores drilled on the 48 degree blocks.
I think the 59 degree lifter bores intersect with the oil galleys and do not need to be drilled.....and the later R 3's are drilled by the factory.

Edited to add ......... I think these are the early part numbers listed .
The later blocks are followed by AC ... I think.
But this might be of some help.

Check Bouchillion
http://www.bpemopar.com/SMALL_BLOCK.htm
Their catalog seems to be close to current......I don't know who has what in stock for these blocks either.
But they seem to have the latest block P/N's
I went looking for the drill fixture to drill the lifter bores.......it is discontinued , but these guys had I think 9 of them in stock.
A lot of stuff from MoPar is getting tough to track down.

Well I just happen to have a good 9.20 block and two short deck W2 intakes. Will be putting a add in parts for sell this weekend. Also will trade 9.20 block for a 360 race block. Need it for our superstock car.

Thanks Alan

Alan you have a PM...

hi don
i think you have pretty nice piece now
imo lose some wieght off the nose of car
rack pinnion,(easy 100# loss!) we have said it before
make the firewall straight so as to get to trans bolts easy (not move motor bsck)
then make new step 1 7/8 to 2" header
jmo with all else you have i think 9.70? high 9.60s
not out of question
:
scopeout:

lets see 170$ rack
100$ for metal tubing
cut out inner fenders
remove old firewall put new straight one in
get trans bolts out easy =priceless
new headers 400.00
total around 1000-1200$$
pickup in et
2-3 tenths mmm

Dennis thought you were going to say big block .

nope wouldnt i know how much you likem
so do i
im just set to run big blocks
small block in the 'TWISTED 'mmm
someday???