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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.

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.