Who runs a R302 on the street

LX XLR8R · 06-27-2003, 03:18 PM

i called up coast high b4 and was indecenttive between the r302 and the sportsman...the guy recremended the sportsman becasue the r302 witch replaced the A4 block now is simeased and has no cooling passages..he said he knew of some people who run them on the street but not any type of traffic no moatter how big the rad...

whatcha guys think

LX XLR8R · 06-27-2003, 03:21 PM

hmmmm..is the new dart block siemesed?

LX5liter · 07-01-2003, 11:18 AM

I had heard that there was no cooling issues with the R block. But I'm sure someone else will know for sure.

LX XLR8R · 07-01-2003, 01:58 PM

yea there def isnt but the new dart block is a full 4 bolt main design and it looks like it has water passages..can anyone confirm/deny

90GT398 · 07-02-2003, 08:46 PM

both are siamese, the strong point of the Dart block is it has what is called "Billet Splayed" maincaps which I guess makes it stronger, I always been under the impression a 4-bolt is a 4 bolt but some manufactures word things differently to sound better than the competition.

You can't go wrong with either block, but you can get a bigger bore with the Dart block, than a R302 block, the Dart is capable of 4.185 bore I think the max on the R302 block is around 4.155.

Now when you get them sonic checked, x-rayed and the full blue-printing who knows how big both can go.

LX XLR8R · 07-03-2003, 11:38 AM

but a Dart block does have water passages right..thats what the guy told me who i am buying it from..he said it is 100% streetable??

Jeff Chambers · 07-03-2003, 03:37 PM

Both the R and Dart blocks have water passages. Both blocks are siamese bore, which means that there are no water passages BETWEEN the bores. Both of them are perfectly fine for the street; both are 4-bolt mains, and both are about 45-60 lbs heavier than a stock block.

LX XLR8R · 07-03-2003, 07:27 PM

ah i seee said the blinde man..i have no idea why coast high talked me out of a r302 for a sportman..he said the r block will over heat if you get stuck in traffic?

thanks jeff

06-27-2003, 03:18 PM	#1
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	Who runs a R302 on the street i called up coast high b4 and was indecenttive between the r302 and the sportsman...the guy recremended the sportsman becasue the r302 witch replaced the A4 block now is simeased and has no cooling passages..he said he knew of some people who run them on the street but not any type of traffic no moatter how big the rad... whatcha guys think __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

06-27-2003, 03:21 PM	#2
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	hmmmm..is the new dart block siemesed? __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

07-01-2003, 11:18 AM	#3
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	I had heard that there was no cooling issues with the R block. But I'm sure someone else will know for sure. __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

07-01-2003, 01:58 PM	#4
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	yea there def isnt but the new dart block is a full 4 bolt main design and it looks like it has water passages..can anyone confirm/deny __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

07-02-2003, 08:46 PM	#5
90GT398 Registered Member Join Date: Jun 2003 Location: USA Posts: 25	both are siamese both are siamese, the strong point of the Dart block is it has what is called "Billet Splayed" maincaps which I guess makes it stronger, I always been under the impression a 4-bolt is a 4 bolt but some manufactures word things differently to sound better than the competition. You can't go wrong with either block, but you can get a bigger bore with the Dart block, than a R302 block, the Dart is capable of 4.185 bore I think the max on the R302 block is around 4.155. Now when you get them sonic checked, x-rayed and the full blue-printing who knows how big both can go.

07-03-2003, 11:38 AM	#6
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	but a Dart block does have water passages right..thats what the guy told me who i am buying it from..he said it is 100% streetable?? __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

07-03-2003, 03:37 PM	#7
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Both the R and Dart blocks have water passages. Both blocks are siamese bore, which means that there are no water passages BETWEEN the bores. Both of them are perfectly fine for the street; both are 4-bolt mains, and both are about 45-60 lbs heavier than a stock block. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

07-03-2003, 07:27 PM	#8
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	ah i seee said the blinde man..i have no idea why coast high talked me out of a r302 for a sportman..he said the r block will over heat if you get stuck in traffic? thanks jeff __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once Last edited by LX XLR8R; 07-04-2003 at 11:47 AM..

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