How much horsepower does a 454 Vortec make?
454ci/L29: Rated at 290 hp, The Vortec 7400 is the last generation 454, with the same 4.5x4-inch bore and stroke as before. via
What casting numbers are Vortec heads?
Types of GM Vortec Heads
L31 Vortecs comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). Originally, the stock #906 casting head was available in two versions. One version had an Inconel exhaust seat with single angle valve grind and was available on one ton trucks. via
Can you put Vortec heads on a 383 stroker?
Randy and Rick Ferbert build a 606hp small-block 383 using iron Vortec heads. Here's how they did it! It can't be done. You just can't make a lot of power with cheap cast-iron heads. via
Are BBC heads interchangeable?
The only OEM blocks with these bosses were the rare ZL1 aluminum blocks, but many modern aftermarket blocks have this added feature. Mark IV, Gen V and Gen VI heads all have the same head bolt pattern, but they are not interchangeable due to different water jacket cooling passages. via
What year did 454 Vortec come out?
The Vortec 7400 L29 7.4 L (454 cu in) V8 was a truck version of the Chevrolet Big-Block engine. Introduced in 1996, it was produced for five years, until replaced by the Vortec 8100. via
How much horsepower can a 383 stroker put out?
The 383 stroker engines have been reported to achieve 330 horsepower with 410 foot-pounds of Torque, 395 horsepower with 410 foot-pounds of Torque and 395 horsepower with 410 foot-pounds of Torque. via
Will 502 heads fit on a 454?
When you go to a dart or afr that is when you run inot exhaust port height problems. A new set of headers will fix you right up in that case. The generation of your 454 could have an impact on the 502 heads fitting. Most gen 6 454 and 502 parts seem to interchange. via
Are big block Chevy heads interchangeable?
In terms of interchangeability, the biggest concern is chamber compatibility with the pistons and ensuring the compression ratio meets your needs. One thing to keep in mind is that closed chamber heads cannot be used on an engine with domed, open chamber pistons because the dome will physically hit the head. via
What are 23 degree cylinder heads?
New for 2012 is the CHI range of Chevy heads, our 23 degree Small Block head is a 215cc intake head designed for circle track or drag racers who want to benefit from significant horsepower increases and less weight of traditional performance chevy heads. via
What size heads for 454?
Performer RPM 454-R heads have rectangular 315/300-cc (long/short) intake ports and 118-cc open chambers. via
What are Chevy Snowflake heads?
With the casting number 3904392, this aluminum head was used on 1967 L88 and L89 engines. The "snowflake" denotes it was cast at the Winters foundry. 3965198: '68 and '69 oval port, closed chamber, 2.06- and 1.72-inch valves. Used on 396ci truck engines. via
What degree are stock big block Chevy heads?
Jason Neugent: From the factory, stock 26-degree big-block Chevy heads don't offer the best architecture from an airflow standpoint, but the design has been highly refined over the years. Their strength is in their popularity, and therefore all the off-the-shelf parts that are built around it. via