New Engine for my C5 !!!
09-07-2009, 08:08 AM
#21
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I would look closely at the TFS heads vs. LS7 heads. They make gobs more torque down low.
If I were to do it all over again I'd do a 427 or 440ci with TFS 225/235's FAST92/92. Much cheaper than a real LS7. My ported LS7 heads alone were over $4K. Over $1K for titanium intake valves.
LS3 block with 4" stroke crank= 416ci
LS3 block with 4.1" stroke = 427ci
LS7 block with 4" stroke= 427ci
LS7 block with 4.1" stroke= 440ci
You could have a 550-575rwhp/530-550rwtq setup that sips 91/93 octane and has great driveability and major kahones for your budget.
1 7/8" headers should be plenty BTW.
Shortblock= block/crank/rods/pistons
Longblock= shortblock + heads
If I were to do it all over again I'd do a 427 or 440ci with TFS 225/235's FAST92/92. Much cheaper than a real LS7. My ported LS7 heads alone were over $4K. Over $1K for titanium intake valves.
LS3 block with 4" stroke crank= 416ci
LS3 block with 4.1" stroke = 427ci
LS7 block with 4" stroke= 427ci
LS7 block with 4.1" stroke= 440ci
You could have a 550-575rwhp/530-550rwtq setup that sips 91/93 octane and has great driveability and major kahones for your budget.
1 7/8" headers should be plenty BTW.
Shortblock= block/crank/rods/pistons
Longblock= shortblock + heads
I too like TFS stuff, along with AFR for these power levels (500-600 HP), and I agree with you that with 420+ cubes, and with a good H/C/I without having to get nuts, can easily make the power he wants....
That is way too much head for the power this guy is looking for. A nice head, yes, but to much for 500-550HP
