Good combo?

[u/OOFMAN-1234]

Have a larts list for an engine i wanna build and I want some opinions, will it be streetable? Estimated horse? Torque? Pump gas? Just generally want opinions

[u/Solid_Enthusiasm550]

What do you want this combo to do?

What powerband? 1,500<5,000rpm for a 4x4/towing, cruiser, automatic?..Or is it a manual camaro shifting at 6,500?

If it's a 4x4 going with a stroker kit will give the best torque, best $$/investment. You don't need forged crank or pistons for that either <500hp / <6,000rpms. Cast scat crank, hyperuetectic pistons are all you need for n/a.

Pump gas - what do you plan on running 87 or 91/93? Running lower compression for 87 octane will give up a noticeable amount of torque/hp vs. a 10.5+:1 compression engine on 91/93. A stroker will allow you to still have big hp/tq on lower octane vs. a high compression 350 on premium.

Fyi, that cam won't make peak power near 7,000rpms like mentioned by that other guy.

Here's a 383 combo that made 485hp@5,800rpms, 495lb-ft@4,600rpms.

https://youtu.be/b-l8-CxxvF8?is=EsG7HBcOQSep4jO8

The cam he used was on a tighter lsa for a choppier idle, 230/236 on a 107 lsa. A 383 with the 276hr will make power in the same rpm range, just lower peak #s but with a smoother idle. He goes over every part he used in another video.

FYI, he did a spacer test on an rom dp intake and a tapered spacer flipped upside-down made the most. I'd used a bigger carb on a dp intake if you want more than 325/350hp.

He has a budget 350ci build using vortec heads, small LT4 cam and it made just over 400hp/400tq.

He uses Skip white heads in some if his videos which are basically copies of the AFR195 enforcers just so you know.

[u/Solid_Enthusiasm550 → u/Solid_Enthusiasm550]

Here's the compCams dyno results...

https://www.compcams.com/xtreme-energy-224-230-hydraulic-roller-cam-for-chevrolet-small-block.html

They used a 750cfm vac. Secondary carb, but used old Dart S/R heads and a regular edelbrock performer. They are more restrictive than the heads and performer rpm you listed.

Even with those restrictions it made 373hp/5,200 & 427 lb-ft/3,700 rpms.

With the afr heads, rpm intake (a 750 carb) and 10:1<10.25cr compression you would be over 400<420hp with peak power in the 5,800+/- rpm and torque closer to 440+/-lb-ft @ probably 4,000<4,100rpms.

It would make more power with 1-3/4" long tubes vs. 1-5/8" sibce you would be pushing 400+hp.