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by 1980RS
Tue Jul 07, 2020 1:15 pm
Forum: Engine Tech
Topic: Heads for a 406 street engine
Replies: 6
Views: 277

Re: Heads for a 406 street engine

I know aftermarket heads are pretty good. I run "stock' Vortec's on my 406. The car runs mid-11's@115 with a dual plane intake and could put it in a street car any day of the week. Sure some of the bigger heads may make more power but for $100 and a valve job I'm dollars up over those heads. I recen...
by 1980RS
Sun Jul 05, 2020 12:06 pm
Forum: Engine Tech
Topic: Valve job with stones
Replies: 29
Views: 964

Re: Valve job with stones

Stones must work. My car with stock heads goes mid-11's with 45° valve job and I still don't know what I'm doing. One thing I do it and I know some here don't like this step but I still lap all my valves in after grinding. Not sure if it hurts or helps but a head porter up here said it brings the en...
by 1980RS
Sat Jul 04, 2020 11:47 pm
Forum: Engine Tech
Topic: Homemade Engine Dyno
Replies: 40
Views: 1364

Re: Homemade Engine Dyno

That's pretty cool, I like it. Good job.
by 1980RS
Thu Jul 02, 2020 5:32 pm
Forum: Engine Tech
Topic: A Victor vs a 300-36
Replies: 4
Views: 232

Re: A Victor vs a 300-36

My SBC 4.155" x 3.00" = 325" engine IF I ever build it?? Before I die?? I have a new, still in the box, 300-36 intake, but would a Victor single plane be better? I'm talking like 4,000 to 8,000 and above rpm's here.. Back then, Holley said the 300-36 was good to 7200 rpm so I bought it when Summit ...
by 1980RS
Thu Jul 02, 2020 5:28 pm
Forum: Engine Tech
Topic: Smokey Yunick SY-1 Intake
Replies: 52
Views: 9051

Re: Smokey Yunick SY-1 Intake

Bought an SY-1 last year from a buddy who had 3 of them. I had to have it, they are frickin cool on a street car.
by 1980RS
Thu Jul 02, 2020 5:26 pm
Forum: Engine Tech
Topic: Heads for 400 w/Mike Jones HR cam
Replies: 35
Views: 1223

Re: Heads for 400 w/Mike Jones HR cam

Here's my 406 setup .030 flat top pistons Scat crank GM 5.7 rods Stock 906 Vortec heads with spring pocket and guides cut for seals and clearance 1165P Elgin hyd cam GM Dual plane Vortec intake (no mods) 1" open spacer 750-850 Mighty Demon 1 5/8" Headers 10" Jeg's XHD 4100 stall Turbo 400 4.10 gear ...
by 1980RS
Mon Jun 29, 2020 9:36 am
Forum: Engine Tech
Topic: 400 SBC build
Replies: 74
Views: 2559

Re: 400 SBC build

What was the MPH? When the time comes, (fast burn bowtieheads) try the Isky 201549 or 201547 VS a Elgin e-1090p.. If small base circle is needed add a SBC to the part# end or Call Isky direct . Best MPH so far is 115 but I am sure if I used the SV Vortec intake it would be a couple of MPH faster. I...
by 1980RS
Sat Jun 27, 2020 4:10 pm
Forum: Engine Tech
Topic: 400 SBC build
Replies: 74
Views: 2559

Re: 400 SBC build

What is the mph and 60 ft on your Camaro. Stock full street trim car weight or stripped down "bracket racer" light weight.? Using the 1.6-1.5 rocker split makes sense. on that cam Good job on the gm vortecs. The compression ratio is quite aggressive with flat tops and 64 cc heads on a 406 sbc. Had ...
by 1980RS
Thu Jun 25, 2020 8:07 pm
Forum: Engine Tech
Topic: 400 SBC build
Replies: 74
Views: 2559

Re: 400 SBC build

Any other comments? My 406 with Stock 906 Vortec's went the best of 11.49 last night with the Elgin 1165P hyd cam. That’s really impressive. What’s the rest of the combo ? Sounds mild enough to be a great street/strip deal Thanks. It's 2nd gen Camaro with a flat top piston .030 speed pro's, 5.7 rod...
by 1980RS
Thu Jun 25, 2020 11:52 am
Forum: Engine Tech
Topic: 400 SBC build
Replies: 74
Views: 2559

Re: 400 SBC build

tcb3274 wrote:
Thu Jun 25, 2020 8:37 am
Any other comments?
My 406 with Stock 906 Vortec's went the best of 11.49 last night with the Elgin 1165P hyd cam.
by 1980RS
Sat Jun 20, 2020 3:25 pm
Forum: Engine Tech
Topic: Edelbrock E force heads #5089
Replies: 16
Views: 585

Re: Edelbrock E force heads #5089

Info in box with heads : spring dia. 1.460" Installed @ 1.800" seat pressure 125 lbs. @ .500" lift 320 lbs. Max rec. lift .550" Then in several places on info sheet says Not compatible with Hyd. roller cams. Tech at Edelbrock on phone said powdered seats used in head will not take the impact loads ...
by 1980RS
Sat Jun 20, 2020 3:19 pm
Forum: Engine Tech
Topic: low buck 454
Replies: 40
Views: 1099

Re: low buck 454

I picked up a TBI 454 that has been recently rebuilt with .030 over speed pro Hyper pistons (stock style dish) and its got low miles and looks mint inside. It has the Gen ? whatever block with 4 bolt mains. Sorry i never understood roman numerals. Anyways i had a plan to build it into something fun...
by 1980RS
Sat Jun 20, 2020 3:16 pm
Forum: Engine Tech
Topic: Straight through mufflers
Replies: 88
Views: 3037

Re: Straight through mufflers

What about the old SONIC TURBO mufflers? Do they still make those? I do not think they are being produced anymore but they were restrictive. I had a set on a car at the track it ran 13.07@105mph, when I dropped the exhaust the car ran 12.39@109mph no other changes. I run Dynomax bullets on the car ...
by 1980RS
Mon Jun 15, 2020 8:53 pm
Forum: Engine Tech
Topic: intake choices for Vortec heads
Replies: 9
Views: 353

Re: intake choices for Vortec heads

Just ran mid-11's with my 406 that had a GM RPM Performer type intake on it. So I am sure the crosswind intake that's a copy would work great on most Vortec engines.
by 1980RS
Sun Jun 14, 2020 12:46 am
Forum: Engine Tech
Topic: Vortec intake runners
Replies: 33
Views: 1834

Re: Vortec intake runners

Why waste your money on ebay china heads. I have a set of bone stock 906 Vortec heads that are on a 406 that run mid 11's @114 mph. Waste of money when a production head will get the job done. That's your opinion and mine is I don't want to machine a set of vortecs for screw in studs atm, plus I go...