350 HP info

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March 5th, 2008, 02:03 PM

74 Omega

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Location: New Hampshire

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350 HP info

Does any one out there have an idea on the HP rating of this motor or what it was in?
Engine #39558-2,intake#404520,#6 heads
it is a 1970 motor
The guy does not know the car it came from

Thanks
Dave

March 5th, 2008, 07:36 PM

Redog

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250?

I think the 6 heads are rare. only sold in Canada

March 6th, 2008, 01:39 AM

78cutlass

Join Date: Jan 2008

Location: Florida

Posts: 134

Olds 350 Motor Info

The casting numbers on the block/heads indicate that's a '70 Olds 350 engine - nice canidate for a build-up. If you decide to sell it, let me know.

March 6th, 2008, 06:18 AM

joe_padavano

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Location: Northern VA

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Quote:

Originally Posted by Redog

250?

I think the 6 heads are rare. only sold in Canada

The #6 heads were used on EVERY 350 Olds sold in 1970, including the W-31 (with the larger valves installed). Do not confuse these with the 6A heads used in the 1980s.

March 6th, 2008, 11:11 AM

The_Jeremiah

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if its a 2 barrel its supposedly around 250 if its a 4 barrel it depends

March 9th, 2008, 06:52 AM

74 Omega

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Location: New Hampshire

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Thanks for all the info guys. I appreciate the help. I'm thinking of buying this one to build (or have built for me) and keeping the original in the shed...