Stage II Headers

[Staged70Lark]

OK Buick experts... If you could pick the perfect header for my car what would it be???

Present Combination:
1970 Skylark Chassis Car
2800 lbs with driver
Usually runs in the 9.50s @ 140 with a best of 9.39 @ 143
464 C.I.
Stage II heads
Lift .100 .200 .300 .400 .500 .600 .700
Int. 66.8 147 227 290 331 336 336
Exh. 71 129 180 215 243 253 253
E/I% 106 88 79 74 73 75 75

Compression 12.8 to 1
Cam: T/A 508s.... 272@.050 int .... 272@.050 exh... 108 lca...
106cl
The current headers are 2 1/8 Primaries 29 5/8" to 33" long with 4" dia. collectors and 9" long.

If anyone has any GOOD information they can pass along I would appreciate it. I am looking to make a few changes so while I am doing this and can improve what I have I will do it now.

Thanks

[gotbuick]

I am curious as to how ported your heads may be?

[RACEBUICKS]

I had TA do the jet hot coatings on my TA headers and I am most impressed with them. I wish they were cheaper BUT you get what you pay for!! :laugh:

[GS Kubisch]

Originally posted by Staged70Lark
OK Buick experts... If you could pick the perfect header for my car what would it be???

Present Combination:
1970 Skylark Chassis Car
2800 lbs with driver
Usually runs in the 9.50s @ 140 with a best of 9.39 @ 143
464 C.I.
Stage II heads
Lift .100 .200 .300 .400 .500 .600 .700
Int. 66.8 147 227 290 331 336 336
Exh. 71 129 180 215 243 253 253
E/I% 106 88 79 74 73 75 75

Compression 12.8 to 1
Cam: T/A 508s.... 272@.050 int .... 272@.050 exh... 108 lca...
106cl
The current headers are 2 1/8 Primaries 29 5/8" to 33" long with 4" dia. collectors and 9" long.

If anyone has any GOOD information they can pass along I would appreciate it. I am looking to make a few changes so while I am doing this and can improve what I have I will do it now.

Thanks

1970 Skylark Chassis Car.....
Won't fit Mike:Dou:

[RACEBUICKS]

:Dou: I never saw that part :Dou:

[Jeff Peoples]

John,
I have a set of 2 1/4" Stage 2 headers for a chassis car for sale. They are jet hot coated and are in excellent condition if your interested in trying something bigger.
Jeff Peoples

[QuikBuik]

John, your setup sounds pretty similar to Dad's engine, except you're running just a bit more cam (he's running the 308s). Wish I had dyno #'s to give you, but he had a custom set of 2-1/4" primary headers built, and saw no change in ET or MPH one way or the other over the 2-1/8" primary "tweaked to fit" TA headers.

[Dave]

John:

I think the only real improvement in header design that you could utilize would be a set of custom built stepped headers. I checked on some from a local "specialist" up here and it was over $1,000......bare......ouch!!! But hey the saying rings true "if you wanna play you gotta pay". I talked to Dave Johnson a bunch about this and decided to stick with the 2 1/8" pri. tube TA headers. My engine combo is similar, with slightly different flow #'s (Stage 3 heads) and a roller cam.

Talk to you later.