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Re: Restoring Rusty
Quote:
Originally Posted by Gregski
OK, so...
How does it run?
- honestly about the same, not any worse, and not significantly that much better, maybe these E-Street heads are not that much better than the Vortecs I had on there. Also I get the same excellent vacuum at idle of 19" even with the single plane intake manifold. If anything the drive-ability may be a bit more crisp.
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Your E-Street heads probably flow better than the Vortecs at lifts above .450". However, Vortecs are hard to beat at lower lifts and have great "average flow" numbers from .200" to .450" or so. They were designed to make lots of torque in the L31 pickup truck engine with cam specs of 191º/196º, .414"/.428.
BTW, I was wrong about your heads being 200cc. Looks like the only E-Street head is 185cc with either 64cc or 70cc chambers. Good bang for the buck.
Have you determined your static compression ratio? That cam would probably like 9.5-10:1 with aluminum heads.
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Mike
1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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