by spencerforhire » Tue Oct 03, 2017 6:41 am
Harry brings up the subject of "de-stroking" a 350 with the 262 crank. In theory, a shorter stroke engine will rev higher,but the 262 crank is only cast, so it wouldn't have anywhere near the capability of a forged one. The only place you see destroked engines these days is in NHRA Competition Eliminator where classification is done by LB/CID. So a short stroke engine can make nearly the same HP as a long stroke one, just at a higher RPM.
With the widespread availability of decent quality aftermarket crankshafts in any stroke you wish, most racers opt to get their cubes from longer stroke engines, like the Chevy 383(a .030 over 350 with a 3.75" stroke, 400 size) crank. Being able to make the power at a lower RPM puts a lot less stress on internal engine components; valve springs, lifters, etc. last a lot longer.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....
Visit http://www.spencerforhire.ca