Aluminum Blocks

What are the differences between a RDI aluminum block and the C&C aluminum block. I looked on-line but no real descriptions of the differences. Thanks.

As I understand it C&C bought the rights/tooling to make the RDI block. I do not know what ( if anything) has changed under C&C's manufacturing of the block.

Yes that is where I saw the RDI block on C&C's web site but they don't tell you much about it or the differences between the two. I believe the C&C block is set up for a dry sump and was wondering if the RDI is the same or if it is more of a standard replacement type block for an iron one?? Thanks for your input!

I have an older RDI block. It is wet sump.

The C&C block I believe can be had wet or dry and they made just a few modifications to it but it is mostly the same block from what I know.

RDI went out of business years ago. Their block was the aluminum Ford Motorsport block in the catalogs for many years. It was hardly a stock replacement block. Carroll Carter of C&C in Manasas Va. bought the rights to manufacture the blocks and has made some improvements to it. It can be had as wet or dry sump as far as oiling is concerned. The block was originally developed by Alan Root out here in California and eventually marketed through RDI.

M-6010-A96 was the FRPP part #. It's often referred to as the "Roberts" block.

This link will shed some light on the subject.

http://www.network54.com/Forum/85220/thread/1122351258/6-5K+for+an+alum+block,+is+this+guy+on+crack-

Man that's an amazing read.

That was back in the good days! There is a ton of good information from that forum!

jeffgfg wrote:Yes that is where I saw the RDI block on C&C's web site but they don't tell you much about it or the differences between the two. I believe the C&C block is set up for a dry sump and was wondering if the RDI is the same or if it is more of a standard replacement type block for an iron one?? Thanks for your input!

Does your telephone work ...? You can always call them; I am sure they would know.

Thanks to all who replied, Lem that link was very interesting, Thanks again. I was just wondering the difference between the two. Randy , of course I have a phone but thought i could get the information here before I would bother them with my basic question. I guess I was looking for a comparison between the 2 types of blocks like 429Sluggo did between his Boss 429 heads and Regular Boss 429 heads. Thanks again for all the answers!!

ROBERTS DESIGN ENGINE BLOCKS - CCM


PARTS#                              DESCRIPTION                                                         PRICE


CCMLWSRD-50                  LOW WET STD BLOCK - 10.320                                         5825.00
CCMLDSRD-50                   LOW DRY STD BLOCK – 10.320                                         5925.00
CCMHWSRD-55                  HI WET STD BLOCK - 11.200                                              5925.00
CCMHDSRD-55                   HI DRY STD BLOCK – 11.200                                              6025.00

CCMHWSRD-60                  HI WET STD BLOCK  - 11.700                                             6025.00
CCMHWPSRD-65                HI WET PRO STOCK-12.000/5.00BS w/o Sleeves               6230.00
CCMHWPSRD-70                HI WET PRO STOCK-12.000/5.00BS                                   6730.00                    

========================================================================

All of the Tom Roberts designed blocks are functionally the same weather called A96, RDI or the C&C part #s listed above. The only change I am aware of is the foundry used.

Thanks Lem!!