[tom s]

I dont want to go that road,IF I loose my mind and decide to do this it will be 65 up water pattern.If someone wants to run it on early heads they would need to remove the water Xover and use a early one along with getting the port work to match the ports.I will have the intake made with RA IV size ports and location with enough material to make bigger.Tom

[mgarblik]

Well, that would certainly work for me as I have not really worked with the early heads anyway. Are you thinking sand casting or some sort of 3D printed finished product? Or have you not moved to that point yet?

[62GPSD]

Originally Posted by tom s

I dont want to go that road,IF I loose my mind and decide to do this it will be 65 up water pattern.If someone wants to run it on early heads they would need to remove the water Xover and use a early one along with getting the port work to match the ports.I will have the intake made with RA IV size ports and location with enough material to make bigger.Tom

is anyone still making the 421 bathtub duel 4 bbl for a 62 b-body I would buy today.

[JSuchma]

Originally Posted by 62GPSD

is anyone still making the 421 bathtub duel 4 bbl for a 62 b-body I would buy today.

PM sent

[62GPSD]

Tom
What would be the best late model heads for my 62 GP 421 if no 127 heads are used. What heads did you use. Thanks for all the info.

[Baron Von Zeppelin]

Originally Posted by 62GPSD

Tom
What would be the best late model heads for my 62 GP 421 if no 127 heads are used. What heads did you use. Thanks for all the info.

If your shortblock is already built , you might need to consider cam lift and which type/size of valve reliefs your pistons have.
You could run big valve heads up to a certain point of valve lift with small valve reliefs in the 421 style pistons.

Tom is saying he used big valve heads 1971 #96 , with 96cc chambers (if stock).
If he did a full fresh build -- he probably used new pistons with proper larger valve relief size.

[421mike]

Hi, I have one which I am not going to use, it's brand new and yours for the original price of $2500.00 dollars if you are interested. PM me if interested. Mike

[tom s]

Guys,John had a few late style bottoms and the foundry cast up a few tops for him so there are some avail.Im sure John will get on here and confirm what the price will be on what im pretty sure will be the last of them.Tom

[tom s]

For more info you can call John at his office.949 975 9965.Tom

[ANDYA]

Tom, out of curiosity, what is the final count on how many bathtubs were made?

[tom s]

John knows how many of our were made and sold.I think the first Johnson Zayjax was a small run like less than 30,Randy Williams made a few diff styles but they only actually got out to friends.I tested 3 of his early on and there was only about 5 HP diff.The mule for this deal was a Williams intake.Tom