Search found 796 matches
- Sat Feb 20, 2021 3:17 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Hi Marc Work out your budget and go from there, What can you realistically afford? Now ask yourself. Do you want a nice cruiser? Do you want a street racer? Do you want a race car? Each of these have a very different driving style. With regards to the idea of fitting an Impco 600 I'd be asking what ...
- Fri Feb 19, 2021 9:42 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Blueprint have a pretty good reputation as far as I am aware.
- Mon Feb 15, 2021 7:25 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Good to see you are moving along. Take plenty of photos and share your findings.
- Thu Feb 11, 2021 5:12 am
- Forum: Propane Forum
- Topic: dedicated propane injection systems
- Replies: 12
- Views: 10037
Re: dedicated propane injection systems
Everytime I watch this I am amazed that the LPG vapour starts out at such a low ambient temp. Your anti-freeze is is not only being punished by the the weather but by the liquid LPG entering the regulator and leaving as a gas at a temp still lower than freezing as well. You're doing a good job my fr...
- Thu Feb 11, 2021 5:06 am
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Off the top of my head I do not know the relevant oem specifications but you measure the centreline of the cam tunnel to the centreline of the crank tunnel and that will give you the distance. You then compare that distance to the oem specification. It is a fairly precise measurement, which things l...
- Thu Feb 11, 2021 1:03 am
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
I think to add stain steel turnips in the baffle. If this is steel wool then yes that is a good idea. Something that makes the oil vapour collect and turn back into liquid form is a good thing. As said I measured wear on timing chain, and from what I hear it is still some wear... what would you do ...
- Tue Feb 09, 2021 1:35 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
From your description of the vacuum readings I would say your compression rings are ok. Also if your car sits for so long you may actually find the residue you have seen is old petrol that has "gone off". It thickens, discolours, and looks like oil, I never let it sit in small engines (lawn mowers, ...
- Mon Feb 08, 2021 7:14 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Timing chain wear is measured pin to pin over several pins, easy check is pick the chain up in the middle of the sprocket, a good chain won't lift far. You also have the opportunity to grab a multi keyed set to get whatever cam advance you chose. Timing chain wear can be measure on the engine exact...
- Fri Feb 05, 2021 4:50 am
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
I have a bad PCV valve. I already noticed oil being sucked too much by this valves, and oil on the throttle blades when dismantling engine.... More likely you've got a pressurised crankcase from poor piston ring seal. Good thinking there @Tom68, I hadn't considered the short block not have been reb...
- Thu Feb 04, 2021 1:55 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
- Wed Feb 03, 2021 3:41 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Now I feel I may have done a mistake… Don't worry about it I asked because it always helps to keep the end goal in mind when we are doing modifications. Let's go through some theory. Petrol is a liquid fuel so a petrol carb will behave differently because we are always trying to keep the fuel in su...
- Tue Feb 02, 2021 5:21 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
What are you wanting to achieve by doing this?
- Sun Jan 31, 2021 11:35 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Hi Marc I honestly don't know about the valve inserts/seats. The size differences, as far as I am aware, between the 2 valve sizes is 0.01". As long as there is enough material to seat the valve and have a visible boundary between the closed valve and the combustion chamber then I, personally, would...
- Wed Jan 27, 2021 1:36 pm
- Forum: Propane Forum
- Topic: dedicated propane injection systems
- Replies: 12
- Views: 10037
Re: dedicated propane injection systems
@everyone I have followed this project on both FB and the MSextra forum, it has been interesting and shows what can be done with items that were never designed to be used together. This also shows that LPG injection is a viable way to keep older vehicles running and on the road.
- Fri Jan 22, 2021 6:15 pm
- Forum: Propane Forum
- Topic: More Air Flow for a Model 425 on a 327 SBC
- Replies: 66
- Views: 27769
Re: More Air Flow for a Model 425 on a 327 SBC
Hi Marc
Here's a video that may give you some hints with your Vortec heads https://www.youtube.com/watch?v=j8Rbpn4KRjY
Here's a video that may give you some hints with your Vortec heads https://www.youtube.com/watch?v=j8Rbpn4KRjY