Відео

Ink you got the l and the d backwards in Edelbrock

Solid! Top KEK! Peace be with you.

Round port 455 HO heads were the best. The #96 were the best D-port heads to use on a 455 build. The outflowed the 6X on both sides and had a smaller chamber- big valves and all the exhaust bolt holes.. Stock Blueprinted bottom-end with #96 heads, an 041 cam and a Quadra-Jet made over 500hp everytime. -and on pump gas.

What is year is the 455 ?

1977 6x heads, how do those compare to the earlier 1967 “670” heads?( what I have )

All right that looks that's a nice looking motor but won't you use the rear end 5 heads if you want to get 450 to 500 horsepower out of it

A few things...the rods and crankshaft were made in China. 6x are NOT the best cylinder heads. The casting 66 are actually better, if screw in studs are installed, and mill the heads .065". Ram air 2, 3, 4, 5 heads, and sd421/sd455 heads, are better yet. Cast 16, 62, 670, 31 heads are also better than 6x, but require a custom dished piston. Other than that, good plan.

I would definitely put hardened Exhaust valve seats in these heads to avoid cracking issues Otherwise nice parts pick

Nice choice with the 455 and Butler parts.... great stuff! :-))

Hi Mike it’s Roxy Jason’s wife I’ve been trying to get a hold of you

Have # 62 on my 455 it's 11.1 runs great!!!

should have put on ram air 5 heads and intake

God bless Pontiac

Great package

Sorry man, you need to delete this embarrassing post.

I'm using the Edelbrock d port heads with a 71 455 in my 66 GTO tons of power just boil the tires off

Very Nice Job ,Looking Forward To Part 3 !!!

Sad to say, but the guy prolly died. This video is over 4 years old right now.

I was wondering, i have a grand prix 1971 455 200hp, 2 bolt main, 7h4 heads 114cc big valve, 2 barrel with only 80k miles virgin block. Will 1969 62 heads 72cc with 4 barrel intake fit the sleeping giant? Or i do need to add other part to make it work?

Well i hab#17 heads. And the velocity they build on my 400 get me more torque off the line.. so basically i beat everyone..after all who race on street passed 60 70 mph

Can you get domed pistons for it? Those combustion chambers were all unnecessarily large.

Junk these heads and use 96 heads.

The diameter of those exhaust ports on the engine block are impressive.

Cool stuff , I'm running a 1972 455 H.O. , .30 over with old school trw L2394 pistons with 7f6 heads , love these Pontiacs been running them since the mid 70s , wish I would have kept more of the blocks and heads I had , hope it turns out well 👍🏁

help me build mine!

excellent walk through. Someone that knows what hes doing. wheres the rest ?

How much do all those parts cost

the problem with lowering CR by using a big chamber, is it increases the distance from the intake valve to the top of piston at TDC, this reduces the suction effect of the piston on downstroke, and less a/f mixture is pulled into the cylinder on intake stroke. the way to do it is with a flat OHV head or nearly flat, and a dish in the piston, that is optimal. the main reason the RA IV heads work so well is, the valve is .040" closer to the piston top- a slight amount but with dramatic effect.

are they those Chinese forged rods in the video ? I'd pass on those.

so are you using the ferrea f 5141 -8 1710 11/32 valves in these heads ?..I have a set of these 6x 8 heads that I'm going to put on a 69 428. I was told years ago to use big block chevy rocker arm studs on these heads ..thanks

Hey buddy where are you? I'm currently rebuilding a Standard 455, heh I'm learning more as I go along, and your videos are very instructional and straight-forward. Waiting for part 3.

Mike! You still around Mt. View CA?

Where did you go? You said in part 2 you would be right back after installing all the crank bearings. You are doing such a good job with the videos. Hardly no one talks in length about Pontiac motors anymore... Please finish the series.

Mike, first off a great choice on the heads. I noticed you had the High Performance Pontiac mag. They had a flow tested ALL of the Pontiac heads and the 6x heads were the best of all of the heads. If you are using headers, you will have to drill another exhaust bolt. The intake Torquer is misnamed, the Edelbrock RPMs intake would have been better choice. I'm interested in your choice of cam here.

Great videos! Both part 1 and 2. Is there going to be a part 3??

How much would you sell a similar set of 6x heads for a 69 400

Mike, you are amazing!

Cool Mike, anymore updates?

Very Cool Build Mike, i just found your Channel, will be watching all your videos. Im only a week or so away from firing up my 10.81 400 Roller motor. Exciting stuff!

Wow! This guy knows his stuff. And love the fact he's a King Kong fan. Yeah f#%k that lizard!!!