What size heads for 406 SBC?

What size heads for 406 SBC?

Henderson Power Sports tops 600 hp with a 406-cube pump-gas hydraulic-roller Chevy 400 small-block

How much HP can double hump heads handle?

“Double-hump” heads were found on many of its high-performance engines in the 1960s and early 1970s. They were manufactured with larger intake and exhaust port volumes and valves for the period, and engines equipped with them had output ratings of more than 350 horsepower.

How much horsepower can you get out of a 406?

525 lb-ft and 490 hp From an 87-Octane 406. There is no one formula to follow in building the ultimate engine. Variables such as cost, parts availability, and intended use all play major factors in the horsepower equation.

What did 461 heads come on?

The 461 head is more popularly referred to as the “Fuelie” head, because it was introduced as standard equipment on the 1962 327ci Corvette engine that was fed by a mechanical Rochester fuel-injection system. In some bench-racing circles, all double-hump heads are classified as Fuelie heads.

Are there any proven combos for a 406-421 SBC?

I was thinking of doing a 400ci sbc that would wind up at 406 or 421ci, I have a set of Dart heads,64cc,220 ported (getting numbers on them next week) so far. My car is 3000lbs with me in it and runs a 355ci,11.5 to 1comp,a 641 lift cam,and ported steel GM heads, 400turbo with a TB and 12 bolt 456 rear.

What kind of cylinder head does a Chevy 461 have?

Today in the shop we’re learning about our new aluminum double hump cylinder heads for the small block Chevy V8. Wyatt and Joe compare them with the original GM 461 casting or “fuelie heads” that debuted on the 1961 Corvette with Rochester fuel injection.

What kind of engine does a 400 SBC have?

Put 121 lbs in the trunk. 400 sbc, AFR 210 heads, nitrous cam, 350 trans with 3500 stall, 3.73 gear, 950 HP carb. Car ran 11.60s on motor with nitrous cam, never sprayed motor though. Sold the car about 6 years ago.Daily driver and my only car for work for 4 of the 6 years I owned it.:yes::yes::yes:

What kind of HP does a Chevy SBC have?

My car is 3000lbs with me in it and runs a 355ci,11.5 to 1comp,a 641 lift cam,and ported steel GM heads, 400turbo with a TB and 12 bolt 456 rear. Car runs 6.90’s in the 8th and was looking to get to the 6.50-6.60 mark. Anyone have a solid combo they could share that would hit the HP numbers? Thanks in advance.