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<blockquote data-quote="truebluedevil02" data-source="post: 11091154" data-attributes="member: 43475"><p>A production 351 will hold over 800hp. A dart or frpp block will hold well over 1500hp so your really looking at a stout block either way you go and don't even waste your money on a girdle or main support system, the blocks are beefy enough to not need one even over 1000hp. As for compression if you go with scat guts they will come with probe forged pistons and if u go with the 33cc dish pistons and a 72cc combustion chamber head your looking at right around 8.3:1 if my math is right. You can safely run 16psi on pump gas at 8.5:1 compression with the proper timing and tune. I have been looking at a very similar setup so I've basically already asked these same question, lol. Check out corral.com and theturboforums.com, there is a lot of info to be had there.</p><p></p><p>Edit: My math was close. A 393 stroker with 4.030 bore -30cc dish pistons and standard .041 head gasket thickness. Compression is as follows based on head combustion chamber size:</p><p>58cc=9.06:1</p><p>61cc=8.82:1</p><p>64cc=8.60:1</p><p>68cc=8.32:1</p><p>72cc=8.04:1</p><p>Like I said above, there is no need to go under 8.5:1 and the TFS heads come with a 64cc chamber so that would put you at 8.60:1 which is as perfect as it gets. With the proper cam and the TFS 205's i would guess hp would be 650-700whp@ 14-16psi on pump gas. 650whp in a 3100lb car is good for mid 140mph traps. That's a monster on the street.</p></blockquote><p></p>
[QUOTE="truebluedevil02, post: 11091154, member: 43475"] A production 351 will hold over 800hp. A dart or frpp block will hold well over 1500hp so your really looking at a stout block either way you go and don't even waste your money on a girdle or main support system, the blocks are beefy enough to not need one even over 1000hp. As for compression if you go with scat guts they will come with probe forged pistons and if u go with the 33cc dish pistons and a 72cc combustion chamber head your looking at right around 8.3:1 if my math is right. You can safely run 16psi on pump gas at 8.5:1 compression with the proper timing and tune. I have been looking at a very similar setup so I've basically already asked these same question, lol. Check out corral.com and theturboforums.com, there is a lot of info to be had there. Edit: My math was close. A 393 stroker with 4.030 bore -30cc dish pistons and standard .041 head gasket thickness. Compression is as follows based on head combustion chamber size: 58cc=9.06:1 61cc=8.82:1 64cc=8.60:1 68cc=8.32:1 72cc=8.04:1 Like I said above, there is no need to go under 8.5:1 and the TFS heads come with a 64cc chamber so that would put you at 8.60:1 which is as perfect as it gets. With the proper cam and the TFS 205's i would guess hp would be 650-700whp@ 14-16psi on pump gas. 650whp in a 3100lb car is good for mid 140mph traps. That's a monster on the street. [/QUOTE]
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