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Search found 196 matches

by 6.50camaro
Thu Jan 23, 2020 10:35 am
Forum: Engine Tech
Topic: Compression
Replies: 39
Views: 989

Re: Compression

I come up with 15.01 to 1. if the volume at .300 in the hole is 70cc the valve notches are 4cc larger then the dome . 825.2 cc = volume of cyl at bdc +58.88 cc swept volume of chamber 46cc + h g volume 6.68cc + 2.2 cc piston .010 piston in hole +4cc valve notch 884.08 884.08 divided by 58.88=15.01 j...
by 6.50camaro
Wed Jan 15, 2020 9:21 pm
Forum: Engine Tech
Topic: Sbc 400 vs 415 vs 427?
Replies: 34
Views: 1140

Re: Sbc 400 vs 415 vs 427?

My personal experiences with my 422 (4.165x3.875) in its first incarnation it had a set of Brownfeild 205cc which were pretty much like the pre-elimantor AFR heads . The cam was solid roller 245/255@.050 .624in/.600ex lift w/1.6 rocker on the intake . Brodix intake with the cast in turtle and round ...
by 6.50camaro
Mon Jan 13, 2020 11:08 pm
Forum: Engine Tech
Topic: 4150 4778 Holley carb questions
Replies: 12
Views: 533

Re: 4150 4778 Holley carb questions

I would start with a 70's or 72's for the primary side and 80'sor 82's on the secondaries . This may be a little rich but should be safe (not to lean). I trimmed the excess off the throttle plate screws and used the wicking type loctite to secure them . Pink accel pump cams and 31 primary squirters ...
by 6.50camaro
Fri Jan 03, 2020 8:15 am
Forum: Engine Tech
Topic: Ported Intake Opinions
Replies: 30
Views: 1197

Re: Ported Intake Opinions

IMHO any advantage of the dual plane intake is lost with the 5300 stall speed converter . 5000-5500 seems to be the point where single planes catch up to dual planes in torque. I think you'll see a small change in ET and probably pick some MPH . The limiting factor now is going to be the camshaft. Y...
by 6.50camaro
Sun Dec 15, 2019 7:21 pm
Forum: Engine Tech
Topic: SBC 350+.060
Replies: 13
Views: 1267

Re: SBC 350+.060

Update, got back to track for a TnT yesterday . Looks like 6800 is the sweet spot for shifting . Made a couple passes shifting higher and et was the same but the 330' times were a couple hunderths slower and got feel the car was laying down . Made some more pases adjusting 2step launch point. Found ...
by 6.50camaro
Tue Dec 10, 2019 9:20 am
Forum: Engine Tech
Topic: Dissimilar carb CFM comparison discussion
Replies: 11
Views: 538

Re: Dissimilar carb CFM comparison discussion

I like your idea of back to back testing the 465's vs 600's . I would make sure to data log manifold vac. readings . That will help determine if the 465's are creating a restriction or not. There is a formula that uses actual manifold vac reading vs. 1.5"hg to calc. the real cfm that is flowing thru...
by 6.50camaro
Thu Dec 05, 2019 7:59 am
Forum: Engine Tech
Topic: Stroke a 396?
Replies: 35
Views: 1420

Re: Stroke a 396?

I was told years ago by an engine builder that you can put a 454 crank in a 396 and use stock pistons with a 6" rod from a 409. Not sure if it's true but there was some kind of article in one of the car craft mags about it. BBC rods are 6.135, 409 'W' rods are 6.000. Using the 409 6.000 rod with th...
by 6.50camaro
Thu Dec 05, 2019 7:35 am
Forum: Engine Tech
Topic: Stroke a 396?
Replies: 35
Views: 1420

Re: Stroke a 396?

I came up with 446 @.090 over ,440 @.060 over . Icon lists pistons up to .060 over in their FHR line for the 454 crank combo using 6.135 rods . Dan
by 6.50camaro
Thu Nov 28, 2019 4:23 pm
Forum: Speier Racing Heads
Topic: Race engine vs Street engine with same combo
Replies: 90
Views: 2437

Re: Race engine vs Street engine with same combo

Corner radius has to coming into play also . You can't fiqure accurate cc's off square corner dimensions . A 1/2" radius on 4 corners will subtract about 3.5 cc per inch off port length. I dont know what Chad uses on that head but they look genrously sized . Dan
by 6.50camaro
Wed Nov 20, 2019 1:40 pm
Forum: Engine Tech
Topic: Have you ever welded or bonded a sump to fuel tank?
Replies: 28
Views: 823

Re: Have you ever welded or bonded a sump to fuel tank?

I used compressed nitrogen to purge the tank after cleaning . The nitrogen displaces the oxygen in the tank creating a non flamable enviroment . Used the purge when I cut the first side off with a angle grinder and cut off wheel . I narrowed the tank 4"s each side to fit the moved in leaf springs an...
by 6.50camaro
Sun Nov 17, 2019 4:18 pm
Forum: Engine Tech
Topic: SBC late block with early oil pan
Replies: 10
Views: 596

Re: SBC late block with early oil pan

Speedway Motors has a R.A.C.E. set that fits right and left dipsticks thin and fat front t- chain covers plus You get timing cover gasket water pump gaskets and a few other misc gaskets for 16.99 part#910-10230 worth a check . Dan
by 6.50camaro
Fri Nov 15, 2019 8:16 pm
Forum: Engine Tech
Topic: Gen3 Hemi 5.7 to 6.4 stroker
Replies: 5
Views: 293

Re: Gen3 Hemi 5.7 to 6.4 stroker

mt-engines wrote:
Fri Nov 15, 2019 2:41 pm
You would be better off doing an Edelbrock e-force supercharger for the money. And they only take about a day to install.
I have not seen edelbrock kits for this gen truck motors just 09 and newer . Maybe they started making one since ilast checked. Dan
by 6.50camaro
Fri Nov 15, 2019 8:14 pm
Forum: Engine Tech
Topic: Gen3 Hemi 5.7 to 6.4 stroker
Replies: 5
Views: 293

Re: Gen3 Hemi 5.7 to 6.4 stroker

Thank for the advice valvetrain Pro Power . I was thinking along the lines of a Manley, Molnar or K1 kit. And possibly a cam designed to take advantage of the extra 46 cu.in. displacement for towing. Dan
by 6.50camaro
Fri Nov 15, 2019 10:25 am
Forum: Engine Tech
Topic: Gen3 Hemi 5.7 to 6.4 stroker
Replies: 5
Views: 293

Gen3 Hemi 5.7 to 6.4 stroker

Looking for more torgue when pulling my 9000 lb 20' enclosed trailer. Mulling around ideas of stroking my 5.7 to 6.4 keeping things as close to stock as possible .
Other than maybe injectors and adding headers what would have to be changed? Trucks is a 07 Dodge ram 1500 4x4 automatic w/quad cab. Dan
by 6.50camaro
Fri Oct 25, 2019 7:31 pm
Forum: Engine Tech
Topic: SBC 350+.060
Replies: 13
Views: 1267

Re: SBC 350+.060

1.76 1st gear Glide with t-brake , the 6.74 run was leaving at 3750 on a two step . Dan