Tired of being passed

[GREGK]

If your on Facebook market place has a few. Nice looking ones in Richland for $50.

[Quik Fix]

Do you need the high ones for valve train clearance?

Should not. I used these rockers with the shorter valve covers before. Had this engine, with all the stock parts, in the boat about 10 years ago.

[My My Hey Hey]

Do you need the high ones for valve train clearance?

[Quik Fix]

Why new valve covers? Are the existing ones too high?

Exactly, too high. The finned aluminum Edelbrocks that I had with the engine disappeared at the engine shop. The tall blue ones in the picture hit the mani.

[Pedlyr]

One thing always leads to another. Put the new manifolds and risers on. Now I need new valve covers. Was thinking of putting the manis in the FW side but, no.

I couldnt use different valve covers on my 350. The top would hit the exhaust manifolds.

[Ship]

Why new valve covers? Are the existing ones too high?

[Quik Fix]

One thing always leads to another. Put the new manifolds and risers on. Now I need new valve covers. Was thinking of putting the manis in the FW side but, no.

[Damon]

Yes, the 14.5 x 14.25 with .150 cup (others are running with the .105 cup).

[tuner]

The prop is great, very smooth! My engine idles a bit over 600rpm and the speed is very close to 4 knots.

What size did you install, the 14.5 x 14.25 ?

[Damon]

The prop is Acme 2275 15x15.75

How do you like the 4-blade? I recently switched to an ACME 4-blade myself and absolutely love it! It's a different ride for sure (smoother, more responsive, and seems quieter (for some reason)). I'll never go back to a 3-blade.

Your prop is larger than mine, and my idle speed is around 3 - 3.5 knots @ 600 RPMs. You must be pushing 4 knots or so at the same RPMs!

[Quik Fix]

Y'all convinced me. Ordered Sierra pt#s 18-1997-1 and 18-1907. Not changing the entire exhaust system now. How would I know if the 3" is hampering the performance? I'll use the SS manifolds on my next project which will be dry stacked.

[tuner]

Jerry, I think the 3" riser is too small. All of the Vortec 350 and 383 engines use 3.5" or 4" risers. The 3" riser is fine for older 200-250hp engines. I was able to run a single length of 4" from the riser to the flange at the hooters. My boat was originally 3.5 to the surge Y and 4" from the Y to the transom.

I ran the 20-0100

3" would be fine if the exhaust was dry, the water, vapor and steam restrict the flow.

[Ship]

Jerry, am I missing something? The top listing is for 350 Chevy and it includes the long riser as an option. Also saw a spacer to raise the riser even further. Do I have the wrong block?

[Quik Fix]

Same site posted by Tuner:

http://www.barrmarine.net/indmar.html

Shows the long riser. I assume they mate up.

They don't. Long riser was what we used on the fords.

[Ship]

Same site posted by Tuner:

http://www.barrmarine.net/indmar.html

Shows the long riser. I assume they mate up.