XR274HR-10 in 318
Not a bad setup what you have going there for street cruising. Did you do any port matching with your Weiand Action+Plus intake and opening up the 302 head ports to match the 318 intake gaskets.
This can eliminate turbulence getting the flow into the heads. The 302s have a pretty sharp edge right there where the port enters the heads.
We have had good luck with the stock 302 heads and stock valves, then you don't loose your hardened seats by putting bigger valves in them. But the big thing is to port match the intake to the heads.
There is this thing with the 318s called smooth port flow with the stock setups that makes an existing layout work nice.
We use the Edelbrock 1406 carbs with these setups, works nice. If people want to make over 300 hp, then you need to go another route. But for basic driving and cruising it is just fine.
318 302s before port match.
318 302s after port match.
Not a bad setup what you have going there for street cruising. Did you do any port matching with your Weiand Action+Plus intake and opening up the 302 head ports to match the 318 intake gaskets.
This can eliminate turbulence getting the flow into the heads. The 302s have a pretty sharp edge right there where the port enters the heads.
We have had good luck with the stock 302 heads and stock valves, then you don't loose your hardened seats by putting bigger valves in them. But the big thing is to port match the intake to the heads.
There is this thing with the 318s called smooth port flow with the stock setups that makes an existing layout work nice.
We use the Edelbrock 1406 carbs with these setups, works nice. If people want to make over 300 hp, then you need to go another route. But for basic driving and cruising it is just fine.
318 302s before port match.
318 302s after port match.
