small block headers

ramcharger said

I would like to see a header dyno test on two separate engine, one a 360 in the 350-400 hp range and another on a 500+ hp stroker. Then I want to see the author of the test install the headers, tell us the ins and outs, then drive 'em on 50 miles of city streets and show before and after pics, lol! I would really like to see what the real life increases on hp and tq really are. Is it 20 hp? 5 hp? Where are the increases in the rpm range, etc?

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Hard facts...

416 Batten w2 roller motor
tti w2 1 7/8 race headers ~635hp
Hedman Hustlers 1 7/8 ~665hp
Hedmans were better from 3200-3500 and up. No low end torque loss.

394 ede headed engine with 1 3/4 Hooker SC's pick up ~30hp over the tti step headers.

360 w2, 1 7/8 tti race headers 527... 1 7/8 hookers 563

Three strikes and your out in my book. It isn't an isolated event, even with a different head combination. Same results.

IMHO, tti's are nice headers for a street application, even the race headers, and limited strip use as FIT is the primary issue. If it's a race car with very minor street use... look elsewhere.

Wish I had some header data/comparisons on a 350-450 horse, 340-360, but I don't. I may have another 360/ede head engine coming up but expect it to make in the 500hp range.