70dusterpink
Well-Known Member
Your right I'm used to SB where 224 is middle ground... I'll go bigger
Subframe connectors are already welded in. 8 point cage. Traction bars. Etc etc no inner fenders just tubing from firewall to frame. Etc...
Now the 509 was making 370hp 450 torque in a smogger in the first post... Which seems weird to me also
Wow. All that extra hp from .4 increase in compression. Or was it the ported heads... ;-)
Just weird you can get that power out of a smog motor when the usual is it needs compression I'll all for it!!
You can get power from anything to a point. Compression more affects the rpm point of peaks and the overall peakiness of the torque curve, not the peak figures. In terms of your pulling truck you know the rpm you need to maintain wheel speed. Build the engine and gear and convertor the truck to put you where you need to be. For a street car those low compression packages don't make peak torque until 3300 or higher. How often are you cruising around there? You'll need to get a slick convertor and gearing to make it work. Or you can add a couple points or more of compression and get that snap back. The cost of pistons and balancing is less than a gear and convertor swap, and certainly less than the gas bills the low compression required gearing will deliver.
And another thing worth mentioning, AGAIN, is dyno numbers are just that.......numbers. Lots of "big hp" builds, when installed into real life cars, don't back up the dyno numbers. Big dyno numbers sell engine builds, think about it