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Post Info TOPIC: 350 engine hp estimate


Addicted!

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350 engine hp estimate


I want to know if anyone here has an idea

what horsepower and torque my engine and parts combo would

yield?

Here are the details 

1970 350 sbc 

guess it has 50000miles

uses a bit of oil not bad though.

Vortec heads with a little pocket porting

15 thou shim head gasket

2 1/2 rams horn manifolds (slight porting)

flat top 4 eyebrow stock pistons

edelbrock rpm intake manifold (vortec specific)

carb base adapter for 4 barrel quadrajet 

stock 3896929 cam

my guess is around 300horse??

not sure on tourqe 

thanks guys



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67 Parisienne Convertible 



Canadian Poncho Superstar!

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What was that 350 base line? L48, L46, ZQ3, L65 ?



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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

Tweet me @BigRaySays






Addicted!

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Date:

I think it was l65

from the engine suffix code

CNN

I think it was originally 250hp

2 barrell carb

single exhaust



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67 Parisienne Convertible 



Addicted!

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Posts: 329
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Specs for  3896929 cam47C52E16-4F33-45AC-A136-0BC52ABBE3BB.png



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67 Parisienne Convertible 



Canadian Poncho Superstar!

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Posts: 17887
Date:

A straight up 5.7 truck Vortec has 255 HP and 365 torque with rollers and the heads you have and fuel injection. GM sellls the Ram Jet crate engine which is pretty much a Vortec and calls that 345 HP and 396 torque. Your L65 would have had 165 net HP 280 torque to be comparable with above figures. I'd say the mods on the engine are about 50 HP so that's around 225 net HP and 350 torque. So your 300 gross HP is in the ball park.  A straight up Vortec would be 365 Gross HP. 



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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

Tweet me @BigRaySays




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