exhaust valve sizes

neon angel · Post by **neon angel** » Tue May 12, 2009 7:58 am

ok went to advance auto today to buy some exhaust valves but the sell two different sizes so what are the size of the non magnum engine?

excon · Post by **excon** » Tue May 12, 2009 9:29 am

the smaller size

neon angel · Post by **neon angel** » Tue May 12, 2009 9:34 am

is that a guess or a for sure answer

Post by **occasional demons** » Tue May 12, 2009 9:48 am

The magnum and standard head have the same size valves. IIRC the DOHC valves are a different size. I can check at home for the valve size. There is a post somewhere, I think it may be parts request that tells the sizes also. IIRC Danteneon posted it. But don't hold me to it. It's been a while since I read it.

excon · Post by **excon** » Tue May 12, 2009 12:12 pm

sorry, the magnum exhaust ports are larger.

EDIT: People have done magnum head swaps and the used the non-mag valves but magnum springs.

03blackrt · Post by **03blackrt** » Tue May 12, 2009 12:50 pm

The factory specs for the diameter are 28.32-28.52mm (1.114-1.122 in). Some places will call them 28.65mm.

If a parts store can't tell you what the standard size is for a SOHC valve, then I wouldn't buy from them. It should be a pretty basic thing.

neon angel · Post by **neon angel** » Tue May 12, 2009 4:21 pm

what about the valve stem diameter and length

Post by **occasional demons** » Tue May 12, 2009 9:59 pm

VALVES
DESCRIPTION SPECIFICATION
Metric /Standard
Face Angle-Intake and Exhaust 44.5-45°

Head Diameter-Intake 34.67-34.93 mm /1.364-1.375 in.

Head Diameter- Exhaust 28.32-28.52 mm /1.114-1.122 in.

Valve Length(Overall)
-Intake 112.76-113.32 mm /4.439-4.461 in.
-Exhaust 110.89-111.69 mm /4.365-4.397 in.

Valve Stem Diameter
-Intake 5.934-5.952 mm /0.2337-0.2344 in.
-Exhaust 5.906-5.924 mm /0.2326-0.2333

Any other ?

03blackrt · Post by **03blackrt** » Tue May 12, 2009 10:24 pm

On a virgin engine, a small raised dot on the valve spring retainer will indicate a valve that has a triple bead lock. No raised dot will indicate a single bead lock. At least that's what I've found from my experiance.

You know know eveything there is to know about 2.0L SOHC valves.

neon angel · Post by **neon angel** » Wed May 13, 2009 8:32 am

thanks occasional demons