Dewitt radiator core for 1970 LT1

[Fred S.]

Has anyone used the replacement Dewitt radiator core for their 70 LT1? will it pass NCRS judging and what if any deduct would apply?

[Edward J.]

Re: Dewitt radiator core for 1970 LT1

Fred the Dewitts radiators are as close as you'll get for a replacement radiator. The only difference is the top and bottom plates, each of the original plates have about 3 or 4 small depressions. Not really sure what they are, maybe that's how they were affixed. Judges may or may not give you a deduct. just make sure the radiator is Properly dated.

[Fred S.]

Re: Dewitt radiator core for 1970 LT1

Ed, do you know if the Dewitt has these same depressions.....it does have the square end holes in the top plate at the ends and the center dimple on the side. Also do you know the location and the form for the date code? Thanks.... PS Nice blue AC coupe!

[Mike E.]

Re: Dewitt radiator core for 1970 LT1

Ed, do you know if the Dewitt has these same depressions.....it does have the square end holes in the top plate at the ends and the center dimple on the side. Also do you know the location and the form for the date code? Thanks.... PS Nice blue AC coupe!

I just bought one for my '65....I haven't taken it out of the box yet. I will take some picture this evening and post them.


Mike

[Terry M.]

Re: Dewitt radiator core for 1970 LT1

Fred the Dewitts radiators are as close as you'll get for a replacement radiator. The only difference is the top and bottom plates, each of the original plates have about 3 or 4 small depressions. Not really sure what they are, maybe that's how they were affixed. Judges may or may not give you a deduct. just make sure the radiator is Properly dated.

Ed,
Fred's question was about the radiator core for a 1970 LT1. Unless the LT1 he is asking about is a ZR1, it takes a copper-brass radiator. AFAIK these are not dated and I don't think your comment about depressions applies. I am pretty sure you are thinking of the stacked plate aluminum radiator, which is a different animal.

[Terry M.]

Re: Dewitt radiator core for 1970 LT1

Ed, do you know if the Dewitt has these same depressions.....it does have the square end holes in the top plate at the ends and the center dimple on the side. Also do you know the location and the form for the date code? Thanks.... PS Nice blue AC coupe!

Fred,
You want a copper brass radiator. Sorry to say I have no personal experience with Tom's products.

[Mike E.]

Re: Dewitt radiator core for 1970 LT1

Ed,
Fred's question was about the radiator core for a 1970 LT1. Unless the LT1 he is asking about is a ZR1, it takes a copper-brass radiator. AFAIK these are not dated and I don't think your comment about depressions applies. I am pretty sure you are thinking of the stacked plate aluminum radiator, which is a different animal.

Ahh..ok


Mike

[Paul O.]

Re: Dewitt radiator core for 1970 LT1

Dewitt,s radiators copper/brass do well in judging if the side tanks are correct, has its broadcast tag, hose clip (was on a 1970 but not used) and painted correctly I personally have not made any deductions.

[Fred S.]

Re: Dewitt radiator core for 1970 LT1

Paul, the original tanks would be used with the Dewitt core. The tag with broadcast code and stamped p/n may not be visible so the manual says not to judge it...is that still correct? Are the holes in the top plate and the dimple fairly accurate to the original? Thanks, Fred

[Mike E.]

Re: Dewitt radiator core for 1970 LT1

Fred the Dewitts radiators are as close as you'll get for a replacement radiator. The only difference is the top and bottom plates, each of the original plates have about 3 or 4 small depressions. Not really sure what they are, maybe that's how they were affixed. Judges may or may not give you a deduct. just make sure the radiator is Properly dated.

I've not been aware of any dating on LT-1 radiators. Do you know something we are not aware of?

[Fred S.]

Re: Dewitt radiator core for 1970 LT1

Mike,
Not sure if the broadcast code signifies a date but the 1970-1972 corvette judging manual section on radiators states "A tag is attached to the passenger's side header tank of copper radiators. It contains two large embossed letters that are the broadcst code. It also contains the stamped part number of the radiator." My NCRS edition is from 1993 so the data may not be current. Let me know what think. Thanks.

[Paul O.]

[Fred S.]

Re: Dewitt radiator core for 1970 LT1

Paul, Thanks for the info. Also any idea where I can find a tag and hose clip? Fred

[Paul O.]

Re: Dewitt radiator core for 1970 LT1

Fred

Tags are very hard to find and no one reproduces them. The overflow hose clip are reproduced and I have some send an SASE padded and will send you one they are close but not perfect.

Paul Oslansky
684 brandy Way
Cincinnati,OH 45244

[Edward J.]

Re: Dewitt radiator core for 1970 LT1

I've not been aware of any dating on LT-1 radiators. Do you know something we are not aware of?

Mike, you are correct, no date on copper brass, I was think of a aluminum type. which was dated. as Terry eluded to.