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Search found 1266 matches

by Bob Hollinshead
Mon Nov 23, 2020 6:13 pm
Forum: Engine Tech
Topic: BBC Manual fuel pumps
Replies: 12
Views: 507

Re: BBC Manual fuel pumps

The O-rings on the needle and seat assemblies can also be the problem.
by Bob Hollinshead
Mon Oct 26, 2020 10:06 pm
Forum: Engine Tech
Topic: duration @ .050"/ .200"
Replies: 29
Views: 2159

Re: duration @ .050"/ .200"

Ford Y block lifters, also found in 223-6 and 134/172, 4 cyl. Aluminum bushings with oil passages for lifter oiling, in the lifter holes and overhead oilers for the valve covers. Mocked up, using a CC .904 lifter cam. Everything fits, with lift to spare. Stock lifters? What spring pressures do you ...
by Bob Hollinshead
Mon Oct 26, 2020 9:52 pm
Forum: Engine Tech
Topic: 70’s-80’s era low rise single plane intakes
Replies: 19
Views: 1038

Re: 70’s-80’s era low rise single plane intakes

A wieand 7546 was the first aluminum intake I ever bought, it was in a summit kit... $176 for the intake, gaskets, 1850 carb and air cleaner LOL. It worked better than the factory manifold but an old Edelbrock c3b? dual plane worked better. The angle of the runners where they meet the head on some o...
by Bob Hollinshead
Mon Oct 26, 2020 9:39 pm
Forum: Engine Tech
Topic: SBC 383. Blow by
Replies: 49
Views: 2306

Re: SBC 383. Blow by

a leaking intake gasket will burn some oil but will it create blowby past the rings?
by Bob Hollinshead
Mon Oct 19, 2020 10:20 pm
Forum: Engine Tech
Topic: BBC Guideplate clearance question
Replies: 10
Views: 879

Re: BBC Guideplate clearance question

I ended up with .009-.011 clearance on all of mine hoping that will work good
by Bob Hollinshead
Wed Sep 30, 2020 10:08 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Cam advice for a mild 327
Replies: 32
Views: 1111

Re: Cam advice for a mild 327

My Son runs comp's 268XEsolid in his 10-1 331 and it has plenty of torque down low, intake duration is 230*@.050", idles decent at 700rpm and has been in use for 13 years. Pulls strong to 6500 with ported heads and airgap intake. I don't think I'd pick anything smaller. He did add LS beehive springs...
by Bob Hollinshead
Wed Sep 30, 2020 12:08 pm
Forum: Engine Tech
Topic: BBC windage/oil control pan mods
Replies: 8
Views: 525

Re: BBC windage/oil control pan mods

[quote=







Many different ways to reinforce the edge to increase rigidity. This is a possible area of flexure and failure.

Reinforcement.jpg
[/quote]

Thanks for the input Kevin I see you are talking about the screen-I'll figure something out for that
by Bob Hollinshead
Wed Sep 30, 2020 10:37 am
Forum: Engine Tech
Topic: BBC windage/oil control pan mods
Replies: 8
Views: 525

Re: BBC windage/oil control pan mods

I know it is easy to drill out rivets BUT it would be nicer to use threaded inserts. Future changes/ideas etc. At first I was planning on nutserts but then I remembered how lucky I am and the potential for them to come loose LOL Many different ways to reinforce the edge to increase rigidity. This i...
by Bob Hollinshead
Wed Sep 30, 2020 10:34 am
Forum: Engine Tech
Topic: BBC windage/oil control pan mods
Replies: 8
Views: 525

Re: BBC windage/oil control pan mods

Nicely done, sir. =D> I'd add a brace from the pickup tube box to one of the pump cover bolts...likely you've thought of that already. Also, how is the oil going to be bypassed? There's a tab welded to the pickup box that goes to one of the pump cover bolts-do you think that will be enough to retai...
by Bob Hollinshead
Tue Sep 29, 2020 11:52 pm
Forum: Engine Tech
Topic: Holley Throttle Blade Screws
Replies: 7
Views: 582

Re: Holley Throttle Blade Screws

I've also plug welded plates in place instead of screws. but you need to get your alignment right first with screws then remove one at a time and weld and control the warpage that occurs when the weld cools
by Bob Hollinshead
Tue Sep 29, 2020 11:49 pm
Forum: Engine Tech
Topic: Holley Throttle Blade Screws
Replies: 7
Views: 582

Re: Holley Throttle Blade Screws

What I have done that worked fine: grind the peened end off before you back them out, clean the throttle shaft and the screws well. Reinstall and position the blades properly. With a small torch heat the screws and apply some solder to the thread end so it flows in and locks the screw in place. Neve...
by Bob Hollinshead
Tue Sep 29, 2020 11:07 pm
Forum: Engine Tech
Topic: BBC windage/oil control pan mods
Replies: 8
Views: 525

BBC windage/oil control pan mods

Am I on the right track here?
by Bob Hollinshead
Tue Sep 29, 2020 7:32 am
Forum: Engine Tech
Topic: fuel pump for tunnel/twin 750's
Replies: 16
Views: 401

Re: fuel pump for tunnel/twin 750's

Just trying to understand this.... locating the regulator to the front of the carbs- is that to deal with G forces? A 100 gpm mechanical pump might feed 750hp on a dyno but not on the track? Is there any way to mount a small transfer tank at the front of the car and fill it from the large rear mount...
by Bob Hollinshead
Sun Sep 13, 2020 9:44 pm
Forum: Engine Tech
Topic: Welded Camshafts for regrinding
Replies: 36
Views: 1844

Re: Welded Camshafts for regrinding

I have two of them cars in my junkyard if you need any parts, they are rusty but low mileage Thank you for the offer Bob, very kind. I have a lot of oem parts. Old 70s Japan parts sell fairly well online if you would like to get money out of your two. I purchased a parts car recently for $50 here i...
by Bob Hollinshead
Sat Sep 12, 2020 10:11 am
Forum: Engine Tech
Topic: Welded Camshafts for regrinding
Replies: 36
Views: 1844

Re: Welded Camshafts for regrinding

I have 70s 1.2L Civic I am redoing for SCCA vintage racing. It's not really that fast with only about 100 hp at the wheels, but it does OK in its class with the Mg Midgets and Sprites. Speed parts used to be available, but now are getting really hard to find. I had two new semi machined cast cam bl...