84 k10 silverado engine decisions

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Tmich396

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Blazer
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350
Just go with something like this.

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chappy78

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chappy78
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1978
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K20
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350
Didn't notice HP and TQ ratings, but with a similar intake, carb, and exhaust, they're probably around 15% more than the base 350 Goodwrench engine I mentioned above. Which fuel pump did you use? How about carb and intake manifold?


Edelbrock fuel sump system. Sniper EFI w/ Hyperspark ignition control. Chevrolet Performance dual plane manifold (P/N 1496820) with the Ramjet 350 / HT383 roller camshaft (P/N 14097395) .

https://www.gmsquarebody.com/threads/1978-chevrolet-k20-build-and-l31r-vortec-engine-swap.27832/

On a chassis dyno it made 221 HP and 294 FTLB of torque which my tuner estimated at 265 HP and 353 FTLB at the crank using a 20% reduction factor for drivetrain friction and inertial loss. During the tuning process it made up to 248 HP and 337 FTLB of torque at the wheels but it was detonating on 87 octane gas so we dialed it back to 221 HP and 294 FTLB for reliability and drivability.

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FireTruck1984

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Camar068

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10 yrs Air Force
for both of those prices, if I wanted to stick to carb, I'd at least look at an LS with a carb and compare the tq, hp, price numbers. I haven't so it might turn out to be ****....but doubt it.
 

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